111 “Swazi” Battalion (with a brown, yellow, and blue belt) belonged to KaNgwana until 1994. After that it was known as 111 SAI and part of the SADF (with a green and black belt but the same buckle)
BELOW - 2ND PATTERN
Images and info thanks to Alan Woolley
BELT COLOURS - 1ST PATTERN - brown, yellow and blue / 2ND PATTERN - green and black