What's funny is when I read the title, the first thing to pop into mind was the Wham-O Powermaster...which was a cross bow.
Digging through the dusty alleys of my brain, I remember seeing and handling one at a gun show back in the late 60s...I thought it was branded Wamo (one "M") It was interesting, but I wasn't into single shot pistols at the time as I was looking for a S&W M-39
The M-39 was S&W's first DA/SA 9mm service pistol. The were so popular that the markup on them was almost as bad as on the Dirty Harry M-29.Did you ever find the Model 39? I am sometimes sorry I did not get one of those, but they were always expensive, and I wasn't a good enough shoot to justifiy a really high-end target centerfire pistol.
The M-39 was S&W's first DA/SA 9mm service pistol. The were so popular that the markup on them was almost as bad as on the Dirty Harry M-29.
You might be thinking of the M-52. It looked a lot like the M-39, except it had an inch longer barrel (5"), was SAO, and was chambered in .38Spl
Wammo used to have little ads in the back of all the boy's magazines when I was a kid, but I never knew they made a gun.
Usually it was ads for slingshots, blowguns, etc.
Almost looks like a Marksman BB gun.