CA1165 - acetylene gas lamp burner

Acetylene gas burners for carbide lamps offered as shown. these are new old stock and the brass will show some tarnish marks. as shown on the bigger image:
CA1165-10 - threaded base (taper thread from 6.7mm to 8.5mm), marked 10 litres (discount available on 10 pieces) for rear or side lamp.
CA1165-5 - plain base (tapers from 10.3mm to 11.2mm), maked No 5, 6 burner holes for headlight
CA1165-7 - threaded base (taper thread from 6.5mm to 8.4mm), marked 7.5 for rear or side lamp
CA1165-1/4- threaded base (1/4 parallel thread), marked Bray 1/8 Lucas Vika, for rear or side lamp
CA1165-1/8- threaded base (taper thread from 6.5mm to 8.4mm), marked Bray 1/8 Vika Reco for rear or side lamp