✅ SOLVED Tool or what, please help with id

[oldsmith]

Hello tnet friends, I found this detecting in an old homestead/ garbage dump. I cleaned it up with a vinegar soak then electrolysis bath and it came out real good. The socket end has a square 3/4' inside dimension, could it be a tool. Any help would be much appreciated and hh. Also it looks like the socket end has what appears to be 20 stamped on 1 side

 

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[Mud Hut]

coal grate shaker from a coal burning stove

 

[bigfoot1]

I agree with mud hut...

 

[oldsmith]

Thanks bigfoot1 and mud hut, you guys nailed it. How old do you think it is?