Data source: EPSG
Information source: G. Bomford "Geodesy" 2nd edition 1962; after J.S.Clark "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.
Revision date: 2015-11-25
Target unit: metre
Remarks: Uses Benoit's 1895 British yard-metre ratio as given by Bomford as 39.370113 inches per metre. Used in West Malaysian mapping.