We have a vintage NIB Boston Celtics Polyester ball (solid green ball with white Celtics logo engraved on one side, a serial number and company logo on the other) for sale through our shop.  The owner is looking to get $75 + shipping for the ball.  Ball is in good condition...just slight scuffed here and there, but we clean / polish the ball up prior to shipping.  Ball comes with it's original box as well.

Sorry, don't have any pictures right now...but if you are interested please let myself know through an e-mail / PM...

-or- call the shop / e-mail the owner:

Postal Code 01501
http://stormbowling.com/proshop/proshop.asp
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-Chris: DJ's Pro Shop : Auburn, MA