Walker Wopper Jaw Slip Jacket Steel sand casting flask form foundry mold 21 x 11

Description

Walker Wopper Jaw Slip Jackets
Foundry / Metal Casting Molding Jackets -
Used -
Manufactured by Walker
Originally used for Bronze & Aluminum sand casting foundry work.
These are used to hold sand casting molds together when pouring metal into the molds.
The wopper jaws taper.
It measures at the large end 21 x 11
It measures at the smaller end 20 x 10
I got it from a local college who had discontinued their casting classes.
not really made for jewelry it is too big.