This is a restored original Lucas 7-inch F700 Motorcycle Headlamp, with a resilvered reflector. The lens is marked "MOTORCYCLE" at the top right and MADE IN ENGLAND at the bottom. There is a pilot bulb port in the reflector which doesn't show in the pictures.
It uses a standard British PreFocus bulb. We have those in various wattages and will gladly include a new one with purchase of this lamp.
These are very rare, especially in this condition.
We do have other Lucas headlamps with pilot bulb ports, but this is the only one marked "MOTORCYCLE."