I agree, Buck. In fact, I saved that picture of yours from an earlier message you posted, to use as a reference in eventually adding the stamping to the dust cover of my new rifle.
I have read most of the threads in this forum, and found your contributions extraordinarily valuable. Your excellent photographs have been a tremendous help, too—especially those showing the special mould for the .50 Express bullet, which I had known about for years, but never seen. It would be wonderful if that mould could be reproduced, and perhaps a little die set made to form the copper cups. In this connexion, my favourite gun author, Henry M. Stebbins, made frequent references to the 1876 in .50 Express, which he had used extensively in his youth, and he mentioned that in using the Express bullet mould, he employed the hollow-pointing plug “more often than not”. This implies to me that the mould might have been supplied originally with two plugs: a long one to make the copper cup cavity, and a short one for casting a solid bullet. Do you think this is possible?