The Polaroid's blank space has nothing written on it, but it should read:
"Cosmonaut flight-suit costume test-fitting, Marty."
I designed this piece of wardrobe for my (unfinished) 35mm short film Hyper-Reality. Two cosmonaut costumes were built, fitted specially for the actors to play them. The above picture was taken in the film studio, here in Toronto, where we were to shoot a few weeks later.