| Location | United States |
| Year | 1974 |
| Type | Bullion bar |
| Composition | Silver (.999) |
| Weight | 31.90 g |
| Diameter | |
| Thickness | 2.60 mm |
| Shape | Rectangular |
| Technique | Milled (Proof) |
| Orientation | Medal alignment ↑↑ |
| Edge | Plain |
| Period | |
| Reference(s) | Kidd#MEM-67 |
| Obverse description | Side view of the locomotive The Black Hawk facing to the right. |
| Obverse lettering | THE BLACK HAWK 1835 P |
| Obverse script | Latin |
| Reverse description | Smooth reverse with letterings. |
| Reverse lettering | THE BLACK HAWK THE FIRST ARTICULATED LOCOMOTIVE - 1835 PHILADELPHIA AND TRENTON RAILROAD ONE TROY OUNCE .999 FINE SILVER PROOF © 1974 MEM |
| Reverse script | Latin |
| Mint | (MEM) Mount Everest Mint, Willow Grove, United States (1973-1976) |
| Mintage | 1974 MEM - Proof - |
| Catalog ID | 4729795930 |
| Comments |
