1992 100 Yn Inventions-Seismograph KM-416 1 oz Pt, DCAM (Proof)
- PCGS No
- 435503
- Mintage
- 100
- Weight
- 31.10
- Metal Content
- Platinum
- Auction Record
- $86,250 • NONE PR60 • 2-3-2011 • Goldberg Auctioneers
Auctions - PCGS Graded
Auctions - NGC Graded