The 'Crusader' brandname was introduced in around 1933.
Crusader was manufactured by various companies,
they were distributed by Bond & Bond Ltd .
Currently there are 2 documented models.
Crusader was a brand sold by Bond and Bond. Early models (1930's) appear to be manufactured by Radio Ltd, later models (1940's) appear to be Collier & Beale.
2 Documented Crusader Models