Anyone know what this is?

My fil gave me a ratcheting crank a few years ago and I just got to looking it over. It has a pully in line and this on the end. My guess is that maybe it was to hang a deer. Anyone know?

My fil gave me a ratcheting crank a few years ago and I just got to looking it over. It has a pully in line and this on the end. My guess is that maybe it was to hang a deer. Anyone know?