GUEST: We think it originated in the Taunton, Massachusetts, area, and it's engraved with the name of a great-grandfather of mine whose son gave it to him. It actually has the date that it was given, of May 1873. APPRAISER: This piece was made in San Francisco. GUEST: Really? APPRAISER: What we're looking at is a piece of gold quartz. I'm going to conservatively estimate it at auction for between $2,000 and $3,000. GUEST: Wow! Incredible!