Not a snaffle, but part of a curb bit, a broken off shank. Could possibly be military, but there are lots and lots of bits in lots and lots of styles, so I'm not going to say for sure.
This is an 1859 cavalry bit
The above is a modern police bit.
A modern cavalry style bit
Thanks Mac and Bonsmate!
I googled it on an image search and it certainly does look like a "Snaffle Bit" and a "Curb Bit" 2 more termsI learned on Tnet!