Yep, it was Harold Robbins. He made locks that were even better than anything I have seen from Chambers, right out of the box. I have a Germanic flint lock dated 1977 that is the best lock I have had the pleasure to own.
I'm not knocking Chambers quality, only commenting on the difference between a machined custom lock and a high quality production lock.
IMHO, a new lock like those, if made today, would cost at least $200 and probably more.
God bless