Hi Julian, please post a pic on the mower and module. I "think" from the model number you posted that its a series 80 full crank.
If it's a full crank you'll know if it's got points.
1) there'll be a module riveted to the underside of the top half crankcase just above where the air snorkel meets the carby.
2)you'll find a kill wire coming out of a hole in the crankcase just under the coil.
If it's a victa module it's compatible with all victa's. The earlier ones were a little larger and rectangular with the wire coming out of it fixed to the module. The later ones have a spade fitting attached to the module.