1946 - Buck Rogers U-235 U-238 Atomic Pistol by Daisy

[Brian..]

I know that various references date this to 1945 but the earliest confirmed sighting I have of an Atomic Pistol is in November 1946. Here's an ad from the Delphos Daily Herald in November 1946. It's also in Sear's 1946 Christmas catalog. It's probably the U-235 but it's impossible to be sure. It looks like the U-235 and U-238 both date from late 1946. The U-238 was a mail away Christmas special.