Hi Sven,

Contract C3139 was a combined contract, for 383 BSAs (catalogue reference 16) and 350 Nortons (catalogue reference 12). Never seen the Norton contract plate, but I do have a photograph of the BSA plate:



The early plates all used the same font, so the one that you're looking for will be identical, apart from the catalogue ref. no. (16 should be 12).

Regards,
Jan

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