Republic of South Africa2025-09-182025-09-181971http://hdl.handle.net/20.500.11837/3172Air photography 1963 (465/63). Surveyed in 1969 and drawn in 1970 by the Trigonometrical Survey Office. Mean magnetic declination of sheet 21.8 degrees West of True North (1970.0). Mean annual change is 7 degrees westwards (1961-1966). Printed and published in the Republic of South Africa by the Government Printer.enMap