last purchase field glasses type 89

[BRUNO FRANCK]

hello guys

this is mine last purchase,, i think it is a good one,,,

help on the stamp are welkom

greetings bruno

[Jareth]

Nice BUT I think kanji on front is fake. Kanji on top lid is right.

[bellumbill]

My understanding is that J.E.S. markings identify the binoculars as post-war. Not sure about the case, though.

Best,

Bill K.

[bellumbill]

Sorry, confused - the JIS code is post war, 1947 I believe. I still am not totally convinced that the JES marked binocs. are WWII - I have a pair of 4 x 10's with the JES marking on them - I have been looking for info. for a few years and haven't found anything conclusive other than that I have seen many examples of the same pair of binocs. without the JES marking. Can't figure why some would have it and others not. My deduction is that after the war the US was "ruling" in Japan and began making Japanese companies mark things more prominantly - This is when the "Made in Japan" phrase was coined. So, its seems the addition of JIS and JES codes was an attempt to label Japanese products with more information for overseas consumption. Of course, this is pure speculation. There seems to be a lack of info. out there about WWII Japanese binoculars.

Best,

Bill K.

[BRUNO FRANCK]

hi Bill

thanks for your opinion,,, when i find something what i like i see in mine books,, in the book off japan at war on pag 128 you see the almost the same binocular and yuo see there also the stamp J.E.S more opinions are welkom

greetings bruno

[lorre]

i have als a pair with jes marking but most of mine are without this marking

[Jareth]

is there an integral range markings inside one of the lenses as visible when looking through?

[zachb]

These are prewar binoculars. The J.E.S. mark was a pre and wartime mark for "Japanese Engineering Standard." After WWII the standard became obsolete and was replaced. Many WWII and older Japanese binoculars bear the JES mark.

What identifies postwar Japanese binoculars is a JB or JL mark, usually on the front hinge followed by a manufactures code (or of course "made in occupied Japan").

Not sure but the manufacture could possibly be NIKKEN, which was Nippon Microscope Works.

[Stu W]

These are prewar binoculars. The J.E.S. mark was a pre and wartime mark for "Japanese Engineering Standard." After WWII the standard became obsolete and was replaced. Many WWII and older Japanese binoculars bear the JES mark.

What identifies postwar Japanese binoculars is a JB or JL mark, usually on the front hinge followed by a manufactures code (or of course "made in occupied Japan").

Not sure but the manufacture could possibly be NIKKEN, which was Nippon Microscope Works.

Although this is not my thread I appreciate this info. Thank you. Can you advise how you came to know this? Is there a good reference book on Japanese optics?

Regards,
Stu

[Nick Komiya]

The JES standard employed here pertains to the screws used. JES standard screws were first made available in 1927. After WW2, based on the JIS standards established in 1949, JIS screws became available in 1952.

[BRUNO FRANCK]

hello guys

hoi Nick and Zach, thanks for the great help
also other members thanks for the discusion, thats what i like on the forum

greetings bruno

[Nick Komiya]

I also think the writing on the front of the case is fake.

[zachb]

Although this is not my thread I appreciate this info. Thank you. Can you advise how you came to know this? Is there a good reference book on Japanese optics?

Regards,
Stu

Stu,

I don't know of any book or monograph dealing specifically with Japanese optics. My knowledge comes mostly from just picking up bits and pieces of information here and there. Here is a link to a site that has some information:

http://www.europa.com/~telscope/binotele.htm

See halfway down that page for more links to info on Japanese optics. As for the maker of this pair, as I said I'm speculating.

Zach

[Stu W]

Hello Zach,

Thanks for the link. I'll spend some time there and see what I can learn. Much appreciated.

Regards,
Stu