Amal carbs are recoded as A and Villiers as V. Some of the details of the Villiers are recorded:-
a) Throttle Stop. The two carb tops in the bottom of the photo show the 0.12 spigot which appears to act as a
Throttle Stop. It is recorded as TS, or if it is not present as No Throttle Stop, NTS.
b) Hole in Choke. If the choke shutter has an air hole it is recorded as HC or if there is no air hole it is recorded as NHC. In the photo the top shutter is HC.
c) Hole in Bowl. If the float bowl has a drain hole near the top of the bowl as shown in the photo it is recorded as HB and if no hole is present as NHB.