Republic of South Africa2025-09-182025-09-181971http://hdl.handle.net/20.500.11837/3174Air photography 1960 (Job No.449/60). Surveyed in 1970 and drawn in 1970 by the Trigonometrical Survey Office. Mean magnetic declination of sheet 22.4 degrees West of True North (1971.0). Mean annual change is 4 degrees westwards (1966-1970). Printed and published in the Republic of South Africa by the Government Printer.enMap