The Zanzibar Government, One Rupee, 1st September 1920, serial number A/1 00350, left panel featuring a traditional dhow sailing along the coast, at right, vignette depicting clove harvesters at work using a three-legged ladder, two printed signatures of John Sinclair and Jasper Corbett Davis below. Pick 1, BNB 101. Provenance:...

It is the rarest New Zealand circulation coin known, struck with both New Zealand and UK designs, now formally authenticated by Numismatic Guaranty Company (NGC), the world's leading third-party authority on mint errors, as Mint Error - Genuine.    NGC: A Mule is a coin that has an obverse and...

Only 3 Others Known? The Ultra-Rare 1940 NZ Coin Set Another remarkable rarity from Aventine Coins & Bullion — with only two others known and seldom seen on the market, even among New Zealand's coin dealers and collectors.   A Presentation Set In 1940, New Zealand marked the 100th anniversary...