Vintage Original 1983-84 BOSTON CELTICS 15th Championship 2.5" Button / Pin in Excellent Condition. SEE More BOSTON CELTICS PINS & PENNANTS and Other SPORTS Memorabilia in My EBAY STORE. Click on EBAY STORES Logo after my USER ID to see my OTHER SPORTS MEMORABILIA AUCTIONS Specializing in BOSTON SPORTS sorted by Sport Categories!