EPSG:9070

Data source: EPSG

Information source: 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 Clark's estimate of 1853-1865 British foot-metre ratio of 0.9144025 metres per yard. Used in 1962 and 1975 estimates of Indian foot.