Are the holes in the plate filled with concrete - or is there a void in the concrete underneath the holes?
Just spit-balling here, but I'm thinking that it could be intended to be used to scrape the mud off the bottom of your shoes before you go into the house - maybe?
My mom lives in southern Arizona where they have some REALLY sticky mud that cakes on the bottom of your shoes, and just about everybody has some kind of home-made "shoe scraper" device located fairly close to the entrance of their abode.
Dirt under the holes. The concrete is around the plate. The plate is flat, no raised surfaces. Would not work to scrape your shoes.
I have no clue what it is or what its function is.
Dirt under the holes. The concrete is around the plate. The plate is flat, no raised surfaces. Would not work to scrape your shoes.
I have no clue what it is or what its function is.
There is dirt in the holes. The plate was covered with soil before we discovered it. There may be concrete under the dirt. Will dig around tomorrow and find out. Does not look like it could be lifted.
Looks like a test plate for different sizes of carbide hole saws and straight shank carbide drills.
Things like how many can I make, actually diameter and smoothness of the cut and any damage to the carbide.
A company that makes these drills has several laying around.
They have been putting holes in hard things since 1947.
It does look like something you'd see laying around a Tin Knocker's apprenticeship shop? His first project so he saved it. I suppose it's stainless steel. CalifEd seems to be onto it. Also, too much time, too many beers, and some leftover concrete.
It's flat to the ground, but I know sure as pie that I'd mess up my lawnmower blade on it!