1 Pfennig - Ernest August
€1.00
| Issuer | Hannover, Kingdom of |
| Year | 1839-1842 |
| Type | Standard circulation coin |
| Value | 1 Pfennig (1⁄288) |
| Currency | Thaler (1814-1866) |
| Composition | Copper |
| Weight | 2.25 g |
| Dimensions | 18.5 mm |
| Thickness | 1.2 mm |
| Shape and Technique | Round Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | KM#173.3 |