5 3/4" semi-sealed headlamp non-pilot from Neolite. These headlamps are e-stamped and take the popular H4 P43T halogen bulb. H4 bulb not included.
A direct replacement for 5 3/4" sealed beam units.
Bulb sold separately here
Suitable for classic motorbikes too, you might need an additional rim if your bucket is too shallow.