These are probably from the 1950s and came off of a chain testing equipment from a local company - Brown Lenox - prior to rest being scrapped. They are 23 3/4" outside diameter, the bore is 1 1/2" diameter, and the rim is 1 5/16" wide. I have a matching pair.
They would not look out of place on a piece of steam related equipment - possibly?
FREE to a good home with ideally a donation to TT. I can send them if the 'new owner' arranges a courier. I would like them gone very soon as I am making room for other 'junk'!
Cheers Carl.