Republic of South Africa2025-09-182025-09-181973http://hdl.handle.net/20.500.11837/3178Air photography 1966 (Job No.565/66). Surveyed in 1971 and drawn in 1972 by the Trigonometrical Survey Office. Mean magnetic declination of sheet 21.5 degrees West of True North (1973.0). Mean annual change is 3 degrees westwards (1966-1970). Printed and published in the Republic of South Africa by the Government Printer.enMap