| Issuer | Italy |
| Year | 1974 |
| Type | Non-circulating coin |
| Value | 500 Lire (500 ITL) |
| Currency | Lira (1861-2001) |
| Composition | Silver (.835) |
| Weight | 11 g |
| Dimensions | 29 mm |
| Thickness | 2 mm |
| Shape and Technique | Round Milled |
| Orientation | Coin alignment ↑↓ |
| Engraver(s) | Obverse: Pietro Giampaoli Reverse: Guerrino Mattia Monassi |
| In circulation to | 28 February 2002 |
| Reference(s) | KM#103 |
| Obverse description | Bust of Guglielmo Marconi facing left, with below the name of the authors |
| Obverse script | Latin |
| Obverse lettering | REPVBBLICA ITALIANA
GIAMPAOLI
MONASSI INC • (Translation: Italian Republic) |
| Reverse description | Italy and neighboring countries topped by concentric circles representing the radio waves that spread from the radio towers of the Peninsula. On the left the value, to the right the mintmank and down the two dates of the centenary. |
| Reverse script | Latin |
| Reverse lettering | GVGLIELMO MARCONI L 500 R 1874-1974 |
| Edge | Lettering in relief |
| Mint | R Rome, Italy (476-date) |
| Mintage | 1974 R - - 689 752 1974 R - Proof - |
| Catalog ID | 2775628720 |
| Comments |
