When looking at a pin, corrosion and rust on the back, and especially the needle, is good evidence it is antique. The needles on most turn of the century pins are very rusty and dark.
Aluminum tends not to corrode, but most antique baseball pins weren't aluminum. Either way, that's obviously not aluminum as aluminum is silverly white (and light in weight). Gold also doesn't corrode, but it's a safe guess the back and needle aren't gold.
Last edited by drcy; 07-19-2014 at 03:43 PM.
|