| Red Mercury | |
|---|---|
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| Country of production | Austria |
| Date of production | 1856 |
| Nature of rarity | Few exist |
| No. in existence | unknown |
| Face value | 6kr – 30 centesimi |
| Estimated value | US $40,000 |
The Red Mercury—Zinnoberrote Merkur, lit. "vermilion Mercury"—is the rarest of Austrian newspaper stamps. It was issued for the mailing of newspapers in Austria and Lombardy-Venetia.[1]
- ^ Österreich 1850-1918, Spezialkatalog und Handbuch, von Dr. Ulrich FERCHENBAUER, Wien 1981, p.107