British North Borneo: Labuk Planting Company Limited, 50 cents, copper, proof, undated, weight 6.02g, NGC Census and Coin Archive InformationNGC: PFRB 61, 62(2), 63(4), 64PCGS: None in Population ReportCoin Archives: 3(LaWe-682b, Pr-45, SS-33) NGC PF 63RD, NGC Cert. #5984215-007. Spink-Taisei, Singapore, 15May 1986. SC 572 Barrett, Purch. 569.。