I have a couple of answers...
"It looks like some type of currency...a dollar bill?"
And, on a more serious (but not nearly as amusing) note
"It looks to me like a caulking drift.
I.e to set tarred rope in between the deck planks on a ship.
Perhaps - so the urine doesn't leak down a level, given 1914-18 a lot were moved that way and by 1920's it all changed.
A bit thin as links go, but it doesn't resemble any feet mouth or innards or saddle or harness, tool I've seen.
Could be for inlay work on carriages, looks a bit mega for 'decoration' though.
Maybe there is calking like work in carriages - not an area I've experienced - aside from wheels, axles, tires.
Could be for truing a tyre, but that's usually done with a paddle and mallet."
And more than a few "You should be doing your own research! Shame on you!"