[Merkle923]

Not that hard to figure out. The photo is clearly taken at the Tigers' spring training camp in Lakeland and has the double-knits not adopted by Detroit until 1972. Conclusion: those are the Tigers' minor leaguers spring training uniforms from 1972.

You see a lot of this with, say, Yankees spring training and pinstripes that read "Yankees" instead of bearing the "NY" logo.

As a PS - also, while the shirt would at first glance seem to belong to a later era, Nemcek's glove screams 1972.