Different Regulators and Different Handles
Attached are three Snips I took of a scan of the Rootes Alpine parts book. These are from section YX - Body Fittings from Series III. Plate B is taken from the diagram showing various parts, including the window regulator and other parts for the doors. Note item 112 is the window regulator and item 119 is the window handle (crank).
Page YX6 lists the parts, including the regulators. For cars from B395000001, the page lists 2235704 and 2235705 as the regulators. Just above that the parts list has 2 other regulators, part numbers 2218488 and 2218489, but indicates they are for cars "Up to intro. 2235704/5", whatever that means.
Page YX7 lists three part numbers for item 119 HANDLE. Part number 2220891 was superseded by 2225150. It says that 2225150 is for cars "Up to intro. 2235436". The third part number is 2235436 and is listed for cars "From B395000001".
Hope this helps.
It appears (per Page YX7) that the base, crown, spring, and pin were used on all Series III through Series V Alpines.