Republic of South Africa2025-09-172025-09-171964http://hdl.handle.net/20.500.11837/3162Air photography 1952. Surveyed in 1963 and drawn in 1964 by the Trigonometrical Survey Office. Mean magnetic declination of sheet 21.3 degrees West of True North (1964.0). Mean annual change is 4 degrees westwards (1953-1961). Printed and published in the Republic of South Africa by the Government Printer.enMap