General Electric Signaling Mirror in its issue box

[warpath]

General Electric Signaling Mirror in its issue box

 

[Steve B.]

I have the identical mirror and box. It was my Father's from when he was in the USAF in the early-mid 1950s. Great item!

[heliographer]

There's a lot of good information about this ESM/I signal mirror on Dustin's thread on this forum about the development of US military signal mirrors in WWII:

http://www.usmilitariaforum.com/forums/index.php?/topic/2412-wwii-emergency-signal-mirror/

 

The 1943 training film for this mirror (produced by the OSS[1]) is on YouTube, here:

 

The best single reference on the development of US military signal mirrors in WWII is this article:

"Heliographic signaling mirrors", R.S. Hunter, NBS, in Air-Sea rescue bulletin, US Coast Guard, publisher, v3 March 1946,

https://babel.hathitrust.org/cgi/pt?id=mdp.39015010566720;view=1up;seq=130

 

This ESM/I signal mirror was invented by Larry L. Young of the Bureau of Standards and , in response to

https://www.google.com/patents/US2395605

 

The mirrors themselves are pretty common - there are 7 currently up for sale on Ebay. The boxes (less durable), less so, though I have several.

 

[1] Backstory of the training film is here: http://forums.equipped.org/ubbthreads.php?ubb=showflat&Number=205295

[LBG1943]

I acquired an esm/1 & googled the address, an empty lot in warren.  i wonder abouth the people who worked there.