DuMont #22217 3/4 inch Keyway Broach

Description

DuMont #22217  3/4 inch Keyway Broach
Let me say, I know nothing about this item except what is obvious. I didn't even know what it was. Please ask questions if you have them and I will try to answer them.
Look at photos, this is the item you will get.
Item # J21-32
This is from an estate. I personally do not know anything about this item, nor am I an expert on these. I try to describe to the best of my ability. Please send questions if you have them, I will be happy to answer them if I can. All of the items in this estate may need to be cleaned as they have been in storage for several years.  Do not guarantee that it is in working condition.
Item sold AS IS. No refunds. No returns.
I will combine shipping if you wait to pay until I send you a combined invoice.  I carefully wrap in bubble wrap with lots of padding if item is fragile.