@Ron Weinand, thank you very much for answering my questions in details. Highly appreciated.
@ Frederick J. Stephens, as you correctly stated, Carter�s book covers trademarks from 1850 - 2000; I never doubted that the certain trademark would be out of THAT period
.
Your very interesting photograph of a hewer with stamped trademark and etched RADL triangle would match my personal theory that any hunting blades were post war enhanced for selling either to the occupying troops or ... to Atwood.
but not being an officially approoved model.
As already said several times, I (also) will wait for this certain mark appearing on any doubtless period IIIR edged weapon before I do consider implying the "fatman" into this certain period.
If any collector does own one or wants to buy one and is happy with it, not the least problem. I for myself still avoid it for my personal collection.
Regards,
