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Posted

I realize I should do more digging before starting this, but on a broad, brief scan of the files, I've noticed that WWII blades, at least the stamped ones, began using tachi mei (smith's name toward the wearer).  This is true for both Showa and large Seki stamped blades.  But as we move to the Gifu stamped blades (still need to research NA stamped blades), the mei goes to the katana side (or side away from the wearer).  

 

I did a very quick look at the star-stamped blades and saw a mix, but I haven't done a serious look at them yet.

 

Anyone have knowledge of this already?

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Posted
13 hours ago, Bruce Pennington said:

I realize I should do more digging before starting this, but on a broad, brief scan of the files, I've noticed that WWII blades, at least the stamped ones, began using tachi mei (smith's name toward the wearer). 

 

A point of reference for this statement. Tachi mei is with the signature facing outwards,when worn as a tachi,with edge down. Similarly, katana have the mei facing outwards as well, when worn as a katana, with edge up. Since the type 94's and 98's were styled and worn as tachi, following tradition, they should all have the signature as tachi mei...but, we see signatures on both sides for showato, and gendaito.

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Posted

I figured I’d get the terminology wrong! I haven’t had time to get into my files yet, but there was a definite change on which side they signed the blades in the last half of the war. Or so it seems.

Posted

Hi Bruce,

I haven't done any research on RJT mei, but this is what I can tell you about the ones I have (or had). These are my RJT blades with star stamps.

 

Tachi Mei        Muto Hidehiro of Fukuoka            18/2  (no longer have this sword)

Tachi mei        Yamagami Munetoshi of Niigata  18/5  (also have another by him done pre-RJT (no star) signed Tachi mei dated 16/9)

Katana mei     Nagao Kunishiro of Aomori           19/2

Tachi Mei        Nakata Kanehide of Seki              19/5

Tachi Mei        Takashima Kunihide of Kyoto       19/8

 

Hope this is pf some use...

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Posted

Ok.  Finished my tally of mei types - Tachi vs Katana - on stamped blades.  It is clear that blades inspected by civilian authority (Showa and large Seki stamps) used Katana mei, with minor deviations; and blades inspected by Army arsenals (small Seki, and Arsenal inspector stamps) used Tachi mei.  Blades with the Tan stamp used Katana mei, supporting the proposal that it was a "gendaito" approval stamp of the Seki Cutlery Manufacturers Assoc.

 

Unexpectedly, the Toyokawa Navy Arsenal used Katana mei, while Tenshozan forge used just the opposite, Tachi mei.  

 

The implication, to me, is that smiths knew which inspector their blades were being made for and engraved their mei accordingly.  I tested this theory by looking for smiths that had blades inspected by both civil and army in the same year.  I didn't find many, but those I found fit the pattern exactly.

1941

Large Seki w/Katana mei           Na stamp w/tachi mei

Kanetsugu                                      Kanetsugu

 

1943

Large Seki w/Katana mei           Na stamp w/tachi mei

Kanenori                                          Kanenori

Kanetaka                                         Kanetaka

Nagamitsu                                       Nagamitsu

 

So it does appear the smiths knew who each blade (or batch) was heading for and placed the mei accordingly.

 

The star blades were predominantly Tach mei, but they did have an unusual number of blades with Katana mei.

 

Here's the chart:

TACHI OR KATANA MEI

 

SHOWA

KATANA MEI

TACHI MEI

1935

1

 

1937

1

 

1939

4

 

1940

21

1

1941

21

 

1942

1

 

ND

63

1

SEKI Large

 

 

1940

4

 

1941

7

 

1942

37

 

1943

19

 

1944

5

 

ND

108

1

SEKI small

 

 

1943

 

1

1944

1 Star

18 (8 Star)

1945

 

10 (2 Star)

ND

 

1

NA

 

 

1941

 

1

1942

 

8 (1 Star)

1943

 

46 (2 Star)

1944

 

15

1945

 

1

ND

 

3

GIFU

 

 

1944

 

1

1945

 

16

ND

 

1

SAKA

 

 

1943

 

2

1944

 

5

ND

 

7

Ko

 

 

1935

 

1

1942

 

3 (1 Star)

1944

 

1 (1 Star)

ND

2

1

YAMA

 

 

1943

 

4 (1 Star)

1944

 

1

TAN

 

 

1940

1

 

1941

1

 

1942

2

 

ND

13

 

STAR

 

 

1941

 

1

1942

5

16

1943

19

47

1944

5

61

1945

2

19

ND

6

12

Toyokawa

 

 

1939

20

1 Kiyomichi

Tenshozan

 

28 All Dates

 

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Posted

Bruce, 

Your work amazes me! One day in the distant future, people will look back at this site and see the work you and others have undertaken and be very thankful for the information they have found. You are appreciated!

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Posted

Thanks Dan.  It's been fun.  And like you point out, there are quite a few of us involved in making it happen.

 

On the topic, I was surprised, actually.  I had expected to see the mei switching sides over time, across the board.  I suspected it was related to the Army assuming control of all sword production and the switch would have been due to their regulations.  But as we found out, it is something else.  You can see that the Army inspected blades are all tachi side as far back as 1935, fully overlapping the years of Showa and large Seki stamping on katana-side mei. 

 

I was also hoping to see the Gifu stamped blades come out on katana-side blades, because it would support my theory that it was a stamp developed by the Seki Cutlery people to replace their stolen Seki emblem.  But we can see they are on tachi-sided mei.  So, I don't know what to think about that other than to assume it might have been an area inspector from that location.  In 1943, the military stamping went to area specific stamps.  The sakura is what made me think it was from the Association, as it matched the style of the Showa stamp.  However, with the new data in mind, it may be more in line with the Toyokawa practice of using the sakura and anchor.  So, we do know that an arsenal, Toyokawa, used the sakura.  Maybe the Army, or a local inspector created this one.

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Posted
2 hours ago, Bruce Pennington said:

?

I think it applies to this section:

 

5. Nakagoshape and file work will be of quality and mei cutting will be scrupulously done. The mei

will be on the outside in the normal way and on the reverse/opposite side will be the date of

manufacture as year, month, day (sexagenary cycle is also permissible).

 

John C

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Posted
5 minutes ago, John C said:

The mei

will be on the outside in the normal way

Oh boy!  That is pretty clear!  Thanks John.  Now we have to wonder why blades inspected by the Association used katana mei.  Who knows about the Navy!  Maybe they used katana mei just to be diametrically opposed to anything the Army did!

Posted
7 hours ago, John C said:

I think it applies to this section:

 

5. Nakagoshape and file work will be of quality and mei cutting will be scrupulously done. The mei

will be on the outside in the normal way and on the reverse/opposite side will be the date of

manufacture as year, month, day (sexagenary cycle is also permissible).

 

John C

 

13 hours ago, Kiipu said:

五、中心ノ形状、鈩仕及刻ハ特ニ人念ニ行ヒ銘ハ外装ノ一般型式ト一致セシメ佩裏ニ製作年月日(干支ニテモ可ナリ)彫刻スルモノトス

WW2 Rikgun Jumei Tosho Documents

 

I just remembered that this is an RJT regulation.  So, I wonder why the most deviations from the reg are on star-stamped RJT blades?  All the non-RJT blades comply with the reg almost without fail.

Posted
On 6/11/2024 at 11:36 AM, Bruce Pennington said:

I was also hoping to see the Gifu stamped blades come out on katana-side blades, because it would support my theory that it was a stamp developed by the Seki Cutlery people to replace their stolen Seki emblem.  But we can see they are on tachi-sided mei.  So, I don't know what to think about that other than to assume it might have been an area inspector from that location.  In 1943, the military stamping went to area specific stamps.  The sakura is what made me think it was from the Association, as it matched the style of the Showa stamp.  However, with the new data in mind, it may be more in line with the Toyokawa practice of using the sakura and anchor.  So, we do know that an arsenal, Toyokawa, used the sakura.  Maybe the Army, or a local inspector created this one.

I just got a blade with a gifu stamp on the nakago (tachi mei) AND the back edge. Never seen that before. This is on a type 3 RS. Dated June of 1945 (Showa Ni Jyu Nen Roku Gatsu) 昭和二十年六月 <-- latest date I have owned.

 

Mei.jpg

Gifu Stamp on Mune.jpg

Nengo.jpg

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Posted
4 hours ago, DTM72 said:

a blade with a gifu stamp on the nakago (tachi mei)

Looks like Yoshisada?  I only have 1 other June 1945 with Gifu.  It is the latest date on file for the stamp.

 

3 hours ago, John C said:

If blades were special order, could the mei be requested by the purchaser to be on one side or the other?

 

John C.

Never heard any history on that, John.

Posted

If it's special order,  Generally,  Special orders, don't have stamps.  Saying that, I've seen a special order of a Showa to, with the owners name on it.

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Posted
22 hours ago, David Flynn said:

I think it just depends on the smith.  If he thinks it reminds him of a Tachi, he signs Tachi Mei.   Same for Katana Mei.

Sorry I missed your post. If you’re talking about the industry in general, you may be right, however, the army was clearly only buying the blades with tachi mei.

 

If you are talking about the RJT smiths, you may be right again. Any of us who worked under regulations of any kind know what that kind of work life is like. The majority of workers follow the rules, but there are always some who decide to disregard them. I think it’s possible that once someone got their RJT qualification, they probably got to feeling sassy about themselves and felt like they could sign their blades however they darn well pleased. The army probably didn’t like it, but took their blades anyway, considering the valuable steel that was invested and the never-ending need for more swords.

Posted
14 hours ago, Bruce Pennington said:

Looks like Yoshisada?  I only have 1 other June 1945 with Gifu.  It is the latest date on file for the stamp.

 

Yoshi 

Tada 

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Posted
25 minutes ago, Bruce Pennington said:

Doh!  Missed it by THAT much!

You only missed it by 1 letter. Close enough right? 

 

Tada   Sada   忠 定  At a quick look, they somewhat look similar...especially once chiseled in the chippy Showato fashion.

 

Have you ever seen the Gifu stamp on the mune?

 

Posted
9 hours ago, PNSSHOGUN said:

Yasukuni and Minatogawa shrine swords invariably used Tachi Mei.

Just did a quick browse through both, and you're right!  Fits the pattern for Army specs.  Interesting that the Minatogawa blades are tachi side, though, seeing that the Toyokawa blades are all katana-side.

Posted

A sixth 1944 katana-mei with large Seki stamp posted by @partyjam3 here:

It's well into the years of Army spec blades with Army stamps with tach-mei.  So, somehow, Seki Cutlery was still requiring katana-mei blades for inspection.  Or maybe it was the other way 'round?  Was the Army rejecting katana-mei blades and pushing them over to the Association for inspection?

  • 3 months later...
Posted

A small update on the Tachi vs Katana mei chart - I did a survey of NMB posts for Takayama forge blades and all of them were Katana mei just like the Toyokawa arsenal blades, which makes sense as a few of them have Toyokawa anchor stamps on them.  Still a complete mystery as to why they used Katana mei whereas Tenshozan used Tachi mei.

 

     TACHI OR KATANA MEI

 

SHOWA

KATANA MEI

TACHI MEI

1935

1

 

1937

1

 

1939

4

 

1940

21

1

1941

21

 

1942

1

 

ND

64

1

SEKI Large

 

 

1940

4

 

1941

7

 

1942

37

 

1943

19

 

1944

6

 

ND

109

1

SEKI small

 

 

1943

 

1

1944

1 Star

18 (8 Star)

1945

 

10 (2 Star)

ND

 

1

NA

 

 

1941

 

1

1942

 

8 (1 Star)

1943

 

48 (2 Star)

1944

 

15

1945

 

1

ND

 

3

FUKU

 

1

GIFU

 

 

1944

 

1

1945

 

18

ND

 

1

SAKA

 

 

1943

 

2

1944

 

5

ND

 

7

Ko

 

 

1935

 

1

1942

 

3 (1 Star)

1944

 

1 (1 Star)

ND

2

1

YAMA

 

 

1943

 

4 (1 Star)

1944

 

1

TAN

 

 

1940

1

 

1941

1

 

1942

3

 

ND

14

 

STAR

 

 

1941

 

1

1942

5

16

1943

20

49

1944

5

61

1945

2

19

ND

6

14

Toyokawa

21

 

1939

 

1 Kiyomichi

Takayama Forge

34

 

Tenshozan

 

28 All Dates

 

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Posted

@Bruce Pennington

Since the navy sword is called "太刀型軍刀" (Tachi-style military sword), I suppose it should have a tachi mei.

http://ohmura-study.net/730.html

 

 

http://ohmura-study.net/284.html

 

刀身
一、皇國古来ノ太刀又ハ打刀ノ身若ハ皇國獨特ノ鍛錬法ニ據レル新身ヲ用フルコト、洋鋼打延ノモノノ如キハ適當ナラズ
二、刀身ノ長サハ佩用者ノ身長及修得セル劍術流派ニヨリ定ムベキモノナルモ一尺七寸以上ヲ可トス
三、ハバキハ太刀ハバキトシ金、銀、銅又ハ金銀著セノ何レニテモ差支ナク鑢目等モ随意ノコト

 

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