Lucas dynamo armature, short model . 162 mm, Parallel shaft with thread at drive end.
Lucas 6 volt, 36 watt 200304, 200305
BSA M20, M21
BSA C10, C11 1939 - 1948
BSA A7 1947 - 1949
Scott 1939 - 1948
Ariel KG, KH, KHA Square 4 1938 - 1939
Part numbers: 200304, 200305