Even further back in the day there was the "duck's foot" (also called "howdah" pistol. I just remembered this pic from the first gun book I was given, "Firearms" by Howard Ricketts, probably not long after it was published in 1962, when I were just a wee lad. It's a good read still if you can find one.
(I added the "scurvy dogs" caption
)
I'd think the recoil would be fairly formidable.
(I added the "scurvy dogs" caption

I'd think the recoil would be fairly formidable.