Barracuda Studios/BarracudaCast resin detail set BR48093

from the manufacturer:

This set contains parts to make a super detailed 10’4” diameter prop w tapered blades, as fitted to many Spitfire Mk. XIXs, XIVs and XVIIIs. There were 2 styles of blades, a wide blade and a later tapered blade seen on most Spit XIXs in service. Designed for the gorgeous Airfix Spitfire XIX, but can be adapted to other kits