Republic of South Africa2025-09-182025-09-181980http://hdl.handle.net/20.500.11837/3171Air photography 1959 Job No.443/63). Surveyed in 1968 and drawn in 1970 by the Trigonometrical Survey Office. Mean magnetic declination of sheet 21.1 degrees West of True North (1969.0). Mean annual change is 6 degrees westwards (1966). Printed and published in the Republic of South Africa by the Government Printer.enMap