First Nihonto, dark spot on the blade?

[faust1103]

Hello,

 

I recently bought my first Nihonto and I am quite happy with it.

The blade came in the shirasaya and was well oiled.

 

However I noticed a single dark/brown spot on the blade. 

 

Please see the picture below.

Is this a rust spot and should I do anything about this?

 

Many thanks.

 

 

[Mark S.]

I will let those with more experience give better opinions than mine, but it looks like there is way too much oil on the blade and it can stain the inside of the shirasaya or attract more dirt/dust leading to future staining/rusting of blade.  You shouldn’t see those large drops like that.  My advice would be to clean off the old oil and see if stain disappears.  Once clean, a better assessment of that spot is possible.  Then a very light coating of oil can be reapplied. 

[faust1103]

Hello,

 

Thanks for the advice.

 

I managed to remove the stain with some alcohol. So it probably was old oil.

I re-oiled the blade (with less oil) and put it back in the shirasaya.

 

So hopefully everything will be OK.

[vajo]

Dont do to much oil on your blade. Oil it and wipe it of. Thats enough.