In the 90s my dad took me to a local Air Show and they had this knife and sheath for sale. I don't remember what my Dad paid for it, but I'm thinking it was around $40. I started doing some research online and couldn't find much about this unique sheath. I believe the knife is from the 1960s or '70s, and hopefully not a reproduction. Does anybody have any knowledge about this?

I got a large grouping several years back with a set of wings done in a similar fashion.  The grouping had the pilot's wings (that match up with photographs) and then this pair.  The wings are full size Navy Aviator wings but with the diamond placed in there like yours.

It probably has to do with how/where they were stored. Mothballs can really do weird things to metal and plastic for example.  I would ( personally) clean these up with some silver polish and they will naturally re-tarnish. These are a fairly common pattern. 

Anyone ever run across a Marine Corps marked SKRAM, or any other modern aviation equipment EGA marked?

Thank you!!

That`is`very`interesting.`I`will`pass`this`on`to`TWU

The Armor School, Ft. Knox, KY.

In my Chrome/Google browser AI is now answering searches by default on everything I seem to search for so it was a pure accident that I started using AI. The answers show as "AI Overview" and then allow you to to continue the conversation and probe deeper into whatever subject you raise. I've been very impressed by it. For non digitised information that it can't access it suggests and points you to a likely source such as a museum, library or organisation that would hold the archived paper records of what you are looking for.

I guess the electronics was for heating, since American goggles in WW2 are more prone to fogging than some other models. The British Mark VIII goggles were preferred for that and the improved field of vision. Here's Jimmy Thach wearing them.       

Most of the 511 patches that you find were worn on the shoulder rather than as pocket patches. All of the units of the 11th Airborne Division had unit specific patches that were worn on the right shoulder. When the patches are oversized, then that is an indication that they were worn as a pocket patch. If the patch looks like it could have been worn on the shoulder, that is probably where it was worn.   Allan