Click to expand Tap to zoom Liberty Mint 1 Troy Oz .999 Fine Silver Bar - Graf Zeppelin SB 29 $89.50 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Liberty Mint One Troy Ounce .999 Fine Silver Ingot. This design features the famous airship: Graf Zeppelin. See photos. _gsrx_vers_841 (GS 7.0.16 (841))