Original British WWII Supermarine Spitfire Aircraft Cockpit Lamp 5C/366 with Box- Battle of Britain Hand Select:Yes The "DN" referred to the

The "DN" referred to the patent identification associated with the helmet's model or type

Fully marked "A

This provenance is indicated by the presence of a capital italic letter B in the inspection stamp

Southern Italy & Sicily

Stanzwerke

Original British WWII Supermarine Spitfire Aircraft Cockpit Lamp 5C/366 with Box- Battle of Britain Hand Select:Yes The "DN" referred to theOriginal Item: Unissued lighthouse type cylindrical cockpit lamps. Fully marked "A. M." (Air Ministry) and Crown, "Ref. No. 5c 366 COCKPIT LAMP". Rotating light cover over red lens, the base is hinged to allow manipulation of light beam, black non reflective finish (easily removed on a polishing wheel if desired). Only 5" in total height, no bulb included. A marvelous WWII item in unissued condition. Comes complete in original cardboard box and brown