1975 Royal Greenwich Observatory 57mm Sterling Silver Medal Set, Gorgeously Toned Zippo 999 oz ASW Diameter 40

999 oz ASW Diameter 40 mm Edge Type Reeded Description Obverse Head with tiara right

between Tarentum and Brundisium

circulated specimens are just about split even with uncirculated specimens

1910 “The Cruise”

1975 Royal Greenwich Observatory 57mm Sterling Silver Medal Set, Gorgeously Toned Zippo 999 oz ASW Diameter 40Limited to just 1,000 strikes, these . 925 Silver Medals were struck by the Royal Mint in honour of 300 years of The Royal Greenwich Observatory. Medal #1 celebrates the Ramsden sextant (Jesse Ramsden) Medal #2 celebrates the armillary sphere. Medal #3 celebrates the first marine timekeeper (John Harrison) Each medal weighs 3. 2 troy ounces for a total of 8. 88 toz net pure silver. For as good as these look in the pictures, I think they look even