Low-Mintage "Inventions and Discoveries" Gold KiloPeople's Republic gold Proof "Compass" 2000 Yuan (1 Kilo) 1992 PR69 Ultra Cameo NGC, Shenyang mint, Cheng-pg 108 (1), CC-408. Mintage: 10. Inventions and Discoveries series. Series I. Serial #08. An incredibly low-mintage emission from this ever-popular Inventions and Discoveries series, here celebrating the invention of the compass during the Han Dynasty around the 2nd century BC. This spacious Kilo issue wears its near-perfect designation with pride, a mark of consequence not to be found on the deeply mirrored surfaces. One of three examples certified at this top pop grade at NGC, our offering exhibits the highest technical quality one could expect from this type, a fact we expect to be matched with fierce bidding activity on the block. Accompanied by the original embroidered case and COA #08.