CAMBODIA. Kampuchea. Piefort 20 Riels, 1989. NGC PROOF-69 Ultra Cameo.KM-P12. Mintage: 110. Struck to commemorate fencing from the 1992 Summer Olympics in Barcelona. Sharply struck with frosted cameo devices and brilliant mirrored fields. Free of tone, haze or fog. VERY RARE as a piefort of the issue.From the Newmark Collection.