Got a little Fathers Day Flea Marketing done and found these two big handled swages in Oakland, California. 1 3/4 and 2 inch along with a nifty gate latch to copy.
Having a hard time imagining a use for a hand held tool this BIG. A two inch tenon would be on a minimum 2+ inch stock. I'm not working anything that big in my little patio smithy, though clamped face up in a vise they'd be nice for big curves.
Historically, what would swage that big? Railroad, shipyard work?