This is a pair of decent quality reproduction Lucas spot, or driving, lamps, also known as "Flamethrowers," at 25% off Moss Motors list.
They have a clear lens with no fluting or block pattern whatsoever. These are made in Asia, of good quality, although the detailing is not as good as the more expensive reproduction "MADE IN ENGLAND" 576 lamps we carry. The crest at the top of the lamp is correctly marked "LUCAS" but there are no other markings on these lamps.
They were sold as options on many British cars, and thousands were sold as accessory driving and spotlamps in the 1950s through 1970s.
Yellow bulbs are available for an additional $30/pair.