Fullex genuine A gearbox with a split spindle function and available with a 39mm backset. This case is for older version Fullex locks which have wider faceplates.
These cases were originally made in variations A-G and are identifiable by the letter which is cast into the face of the top fixing lug with the general difference being the thickness of the lugs. Only A and F cases are still available.
Operation: Lift Lever or Split Spindle
Latch reversal: Undo the screw in the latch to remove. Reverse and reinsert then replace the screw.