NKT 5cm f1.4 - Odd Engraving on Barrel

Miles.

Beamsplitter
Local time
10:39 PM
Joined
Jun 2, 2018
Messages
436
I recently acquired this early NKT 5cm f1.4 lens and noticed an odd engraving on the barrel. Any ideas what it means? Dealer engraving? Old corporation or government logo?

Mr. Rotoloni has not seen it before.

NKT f1.4 Engraving.jpg
 
It looks more like a "Cattle Brand"- maybe a company bought the lens, and that is a "branding".

It is cool.
 
Haruo Sato, who runs Nikon's "The Thousand and One Nights" replied in a different forum:

"This is thought to be a mark meaning "tool (工具=kougu)" that was used by Nippon Kogaku."

He said he couldn't be certain, but that is the prevailing thought amongst people who know much more about Nikon than I do.
 
Coming from Sato-san, it seems likely. :) I did some searches for a similar icon/logo/symbol (including AI) but didn't come up with anything.
 
Haruo Sato, who runs Nikon's "The Thousand and One Nights" replied in a different forum:

"This is thought to be a mark meaning "tool (工具=kougu)" that was used by Nippon Kogaku."

He said he couldn't be certain, but that is the prevailing thought amongst people who know much more about Nikon than I do.
That actually was my first thought, but it looked so much like a lightning bolt I went with the GN hypothesis, though seeing as it was not something that showed up in any production runs that it might have been an experimental unit.

PF
 
I wonder if it is the logo of a large chain of Japanese photographic equipment stores or the Japanese version of a Japanese PX store for its Self Defence Force ?
 
Back
Top Bottom