Not sure if this is a 38 short?
I think it is too short.
Cartridge L 1.045"
Case L .696"
Bullet 3.73"
Rim .435"
Head .377

Looks like the .350 Sharps. A European revolver round.

I figured it out Pete. It’s a 380 short. I I found the same cartridge in the collection when I was looking for my .350 Sharps to compare.