THE OLDEST THING FOR SALE ON THE WEBSITE. THIS LARGE DINOSAUR BONE WAS FOUND IN MONTANA IN THE 1980'S. IT MEASURES 12" IN LENGTH. IT IS THE END PIECE OF WHAT WAS PROBABLY A LEG BONE. IT IS IN EXCELENT CONDITION CONSIDERING ITS AGE. IT IS A VERY NICE DISPLAY OR CONVERSATION PIECE. FOR OTHER ANTIQUES, VINTAGE COLLECTABLES AND ITEMS OF HOUSEHOLD INTEREST PLEASE VISIT MY OTHER ADS.