Looks like something for a horse drawn wagon.
i dont know and maybe i dont want to know,haha. charley
It pivots on the end and the two pieces stop parallel to each other by getting caught by the brass clicker in the middle.
It is complicated and doesn't make a lot of sense.
Maybe a Locomotive or traction engine ??
That is what I thought. It has a number cast into the brass part that is in an 1890's script.
Maybe it's a Henway?
It looks like a lineman's wrench.
About two pounds!
Methinks Jay has it right.
Apparently locks into place. Perhaps something to hold pieces while some thing else was installed or repaired.
Don't know about the wrench but I sure could lust after that anvil?
I don't think it is for a Model T but it looks like something to use for expansion such as a jack or possible spreader to put shims in a wheel or something like that.
MacGyver's all purpose pocket tool early prototype.
I think the left picture is not correct use. Look at the underside notch thingee that would fit very nice into that spring loaded catch rather than as shown. Then the device would be a double open end wrench that folds up.
It locks in both positions.
So much for my theory
It looks like it could be something the water or gas company might use for opening curb boxes and turning valves.
That is a very special, one-of-a-kind wrench, used by the World Planet Keeper. If the world should crash, the Keeper must pilot a special submarine to the bottom of the deepest trench of the ocean. He uses the wrench to turn a special switch that reboots the world.
A French Wench?
May be a drum bung wrench, many manufacturers offered them in many different configurations. KGB
It's a big wrench......
IT could be a bridge wrench. They used a lot of big square bolts and nuts on railroad trelleses.