The Lucas Magneto Dynamo is a vintage part from the 1940s or 1950s designed for single Norton, BSA, Triumph, and Panther motorcycles. This UK-made dynamo, known for its reliable performance, . Lucas is a well-known brand that specializes in providing quality motorcycle parts and accessories. This product is a valuable piece for collectors and enthusiasts looking to restore or customize their classic motorcycles from the mid-20th century

 JOSEPH LUCAS  LTD .model mo116       46020B  TYPE AC52    149 .
BIRMINGHAM ENGLAND 
STAMPED ON ID PLATE 
it came from a old british bike dealer .sitting some time on a shelf .i fitted a rubber hose to the shaft just to turn it .

 it puts out a healthy spark turning anti clockwise .inside looks good and clean nice points .taper shaft and threads nice .will need a gasket for outer cover to seal easy fix .mounting locating studs are good not worn out .
see all pictures first before bidding .

please research if its the one for you .according to the part numbers i had given .
i do not know what model its for .

used on british singles 30 40s 50s era .norton ajs bsa norton vincent rudge triumph panther etc i am no expert 
i only tested it for spark and it sparking good please do your homework see all pictures ask all questions .thanks for looking 

.offers invited