I have bought and sold some of these in the past couple of years. The Boxing Glove is the least desirable price wise on your list. I think I sold the one I had for $150 but paid only $75 for it myself.
The Ebonite Pin is actually kind of rare, it will probably bring over $200 if auctioned off on EBay.
The Basketball and Football are both somewhat common for some reason, but would sell for probably $150ish.
The Golf and Soccer ball are a bit more rare and would fetch north of $200 I would guess.
The Baseball is a real gem. Hard to find undrilled. It should bring $300 or more.
This all assumes they are 15#, undrilled and with the original box. It's also just from my experience in buying and selling a lot of balls the past few years. Your mileage may vary.