Kataoka Ginsaku wrote:
There is a KO-WAKIZASHI made in Matsushiro, province Shinano, a commisioned work for the Zenko-Ji temple. The short wakizashi was made Tempo 7th year ( 1836 )
So the Chi-ya-no reading on the Nakago is the Shinano and the Katakana stamp is the town of Matsushiro.
The AOI description of the blade as a Sunnobi Tanto is probably the Ko-Wakizashi mentioned above.
Naotane made several unique commisioned works on his long travel route, so some stamps were made only once.
Find no other example.
James, check the link and you find a picture of Mike Quigley. It is collection history, thought its interesting to see his ( FORMER ) items on the auction.
Best
Hi Alex, this is the Katana
SHOJI CHIKUZEN DAIJO TAIKEI FUJI NAOTANE (KAO)
Tenpo, Ni-Nen Chushun ( Tenpo 2 year, mid spring 1831 )
Nagasa: 2 Shaku, 2 Sun, 9 Bu, 5 Rin ( 69,54 cm )
Sori: 5 Bu ( 1,52 cm )