British North Borneo: Jellani Estate, 30 cents, STRUCK IN BRASS, undated, weight 2.80g, *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: MS 58PCGS: None in Population ReportCoin Archives: 6 (of which 2 are catalogued under Malaysia )(LaWe-649, Pr-70, SS-92), NGC MS 64, NGC Cert. #5984222-003. Spink Singapore, Auction 1105, 25 June 1994, SC 558 Barrett, Purch. 9406D.。