Found on Imgur, and posted to Reddit.
From the Reddit page:
"My Grandpa Jack Petashnick in a shop he had in Milwaukee Wisconsin. I'm not sure of the year and I'm not sure what kind of shop it is. I always heard that he was into salvage. So maybe he sold scrap metal here. But the tires and rims seem to indicate they did some mechanical work there as well. Also, I can't identify what the items hanging on the ceiling are. I would love any help to identify them.
One more interesting factoid. My aunt labeled this picture "Daddy's shop on 11th St & Winnebago". Couldn't find it on Google maps because it isn't there anymore. I-43 covers that intersection or where it would have been."
Auto wreckers . . .
Ceiling has piston/rod assemblies, steering wheels, and some rad shells.
Floor has pile of tires, some rad cores etc.
Shelves full of used parts as well.
Most impressive is the old stove. I'll bet that thing would glow cherry red in the winter and the heat would reach out a good 3 ft radius around it. The rest of the shop was froze stiff.
B.S.Wisnewski was the parts store for all old car parts in Milwaukee and it may have been near that address if I remember. I bought parts there many years ago. This may have been how it got started.
Dick - The B. S. Wisnewski building is still there and it's about 2 blocks from the I 43 corridor where this building apparently was.