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| 裏面の説明 | The central field features a stylized radiating communications tower emitting concentric signal waves, rendered in a bold modernist design. At the base of the tower, a post horn with a small Bulgarian lion emblem serves as a symbol linking historic and modern communications. The commemorative dates '1879' and '1979' flank the lower central device, marking the centenary of Bulgarian communications. The arc legend 'СТО ГОДИНИ БЪЛГАРСКИ СЪОБЩЕНИЯ' curves along the upper periphery in Cyrillic characters. |
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| 鋳造数 | 1979 - - 35,000 1979 - Proof - 15,000 |
| 追加情報 |
Issued to mark World Telecommunications Day, this piece belongs to a broader Bulgarian commemorative program that ran through the late 1970s and early 1980s, producing .500 fine silver issues tied to UN and ITU observances. Bulgaria was among the more prolific Warsaw Pact nations in issuing such coins — partly as a hard-currency earner through export to Western collectors, a revenue stream the Bulgarian National Bank managed with deliberate commercial intent.