Harmony Ink Stamps???

[audio]

I recently acquired a Harmony tenor archtop, and I'm curious to know when it was built. The ink stamp visible through the f hole is illegible. In the process of resetting the neck, I found an ink stamp on the heel of the neck that says "365" or "865." This number is possibly preceeded by a "1." Is anyone aware of any significance to the ink stamp on the heel of a Harmony neck?

Thanks in advance for any insight.

 

[Auriemma]

I have an Old Kraftsman dread from the 1950s. Its a Kay made cousin to your Harmony. Mine has 2 stamps inside as well. No one I know of has been able to find or figure out what them mean.