Hi Jimmy,
I agree with Tony re:- the Black pick ups, They were made by Cyril Proctor.
I had several from him in 1971/72 when I just started building lap & pedal steels, some with different string spacing.
Iv'e still got the original receipt & paper list of items he sold.
The white one was made by Len Dixon for Denley steels, he made them in Black (as standard) and White, with different strings spacing too.
The design & shape of the ends were changed from square to rounded off, to suit the customers cut-out in the steels neck, so that one you have was probably a custom one.
See my old advert with both types showing.
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