A member of my antique firearms FB page posted this. I don't understand how the ignition system would work. It's not pinfire, I see no way to load it with cartridges, i.e. the barrels don't swing or drop, I don't think it's a muzzleloader. It looks as if it's part factory and part homemade. Any enlightenment would be appreciated.

https://imgur.com/Vbc0yvI

https://imgur.com/aaaSW6d

https://imgur.com/63WYkdA

https://imgur.com/RqmkWxE

https://imgur.com/ePtvOPU