This piece is from an avid collector and I have MUCH more to list from her, including event items, autographed pics and cards, figures, etc.  From a smoke-free and pet free home. Has been in a storage bin for decades.  I do combine shipping and use recycled materials when possible.  <p> This disk is 2-7/8 in diameter.  One side has "Star Trek 25th Anniversary 1966-1991" plus heads of Spock, Kirk etc. Flip side hasm 1991 Calendar with space craft. 3D. Around edge:  "Solid pewter 1990 Paramount Pictures" and "to boldly go where no man has gone before".  Excellent condition.  May need a polish. Heavy