British North Borneo: Melalap Estate, 20 cents, STRUCK IN BRASS, undated, weight 10.28g, *Unique, the only piece known to exist*This is the actual piece illustrated in "The Encyclopedia of the coins of Malaysia, Singapore and Brunei 1400-1967",NGC Census and Coin Archive InformationNGC: None in censusPCGS: None in Population ReportCoin Archives: None(LaWe-715, Pr-unlisted, SS-84), NGC MS 62, NGC Cert. #5984220-014. Spink Singapore, Auction 1105, 25 June 1994, SC 549 Barrett, Purch. 9406D.。