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Diagonal red SPECIMEN ovpt front/back; all-zero s/n 10 francs Values
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Obverse: French text; Grand Duchess Charlotte facing forward
Reverse: French text; Vianden Castle; coat of arms
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- Grand-Duché de Luxembourg (Grand Duchy of Luxembourg)
- Diagonal red SPECIMEN ovpt front/back; all-zero s/n 10 francs Values
Diagonal red SPECIMEN ovpt front/back; all-zero s/n 10 francs Values
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Grand-Duché de Luxembourg (Grand Duchy of Luxembourg)
Diagonal red SPECIMEN ovpt front/back; all-zero s/n 10 francs Values
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Stack’s Bowers Galleries
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Australia. Popular Silver and Gold Koala Bullion and Collector Coin Series Returns With a Third Release
2/18/2026
The Royal Australian Mint's beloved Koala Series has returned with a third release and new design.
Croatia. New Gold and Silver Proof Coins Mark Bicentenary Anniversary of Samobor Carnival
2/17/2026
The Croatian National Bank release new gold and silver collector coins celebrating a love of Carnival.
United Kingdom. Gold and Silver Proof Coins Released In Tribute to Master Engraver Jean Baptiste Merlen
2/16/2026
The Royal Mint release the latest gold and silver proof coins in an exceptional collector's series.
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Heritage Auctions
Tuesday, December 2, 2025
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Wednesday, December 3, 2025