Cast alloy horn with ABS domed top cover, a very good quality reproduction of the long time obsolete Lucas type WT618 horn.
Very popular horn for vehicles from the vintage era up to the mid 1960s.
As factory fitted to Ford Zephyr, Zodiac, Consul.

Other classics these were fitted to include:
Triumph TR2/3/3A/3B, Rolls Royce, MG TD/TF, MG MGA, Jaguar XK120, Morgan, Austin, Lotus Elite, Rootes, Bristol, Morris etc
Also sold as an aftermarket accessory as this advert from 1958 demonstrates.
Supplied complete with fittings, brackets & wiring tails.
Measures diameter 137mm (5"), diameter including trumpet and mounting bracket 204mm (8"), height 100mm (4"), triangular mouth.
Fairly loud at 110db each with the original mellow tone.
Supplied as a pair high and low note.

Classic & Sportscar Magazine said of these very horns when they were submitted to them for testing:
"Give your classic a proper period parp with a pair of these traditional horns. The 12V units come as a high and low set with mounting brackets. They sounded loud and assertive on test!" Classic & Sportscar Magazine