Some Kind of Latch?

[z118]

:dontknow:

[Tony Two-Cent]

I know this much about it:

1. It's old.

2. It's really cool.

thumbsup01

[OxShoeDrew]

3. It's bigger than a penny.

4. See 2.

:groovy:

[Mudder]

5. Looks like a fancy gate latch.

6. Number 2 x 2 :clapping: