From the same era when heroin was sold as the non-addictive alternative to morphine. “Truth in advertising” wasn’t a thing then.

Mod of the Forgotten Weapons community chiming in to explain. Iver Johnson revolvers featured a (at the time) new safety mechanism that prevented the guns from going off when dropped. I wouldn’t recommend giving it to a baby though.

More famously they had a “Hammer the Hammer” ad series where they showed this off.

Post with more info: https://lemmy.world/post/10228746