Land Rover Series 1 & 2/2a 3.

1x CWX & FW2 Lucas Wiper Motor Arm Spindle Adaptor 605904, 605094, RTC4480.

Also Fitted To Saab 96

Very hard to source, this has the round centre hole 

(later Series 2a-3 usually need a D profile but please check your Land Rover before ordering!)

Dimensions 20mm tall with 19mm diameter base, central bore 6mm (7/32") 13.6mm spline.