Gang, This key's been in my collection for a few years. http://www.skywaves.ar88.net/mil/J-key/J-key.html I'm trying to verify it's actual application. My SWAG is it may have been used in a two-place aircraft like a "Val." You'll see what I mean. Any help appreciated, Al -- Al Klase - N3FRQ Jersey City, NJ http://www.skywaves.ar88.net/