When I was a young man, my mother's friend had her grandfather's cane. She showed it to me and how you could turn the handle and a small trigger would pop out and the bottom of the cane opened similar to a camera lense. By turning it the other way you could insert a .38 cartridge. I wish I knew what happened to that came after she passed away.
I picked up one of these up for a Grant a few weeks back. It's missing the firing pin, spring and screw. I am trying to find someone has one and could post pics of these missing parts. My friend is a machinist and can easily replicate the firing pin with dimensions.
Thanks