Yes, that is Mr. David C. Scott. I have contacted him on his e-mail address (found on his official web site), and he was so kind to reply me on my e-mail and to write his messege here, too. He wrote a couple of interesting books, and I will look forward to read them.
@@Stosh - I don't know what to say... a lot of unusal facts and contradictions are connected to this paper. For example... if it is has been published in 1930-ies, or in 1940/50-ies, as CalicoPenn says, why someone will use info and standards (and a photo) which have been actual for a very limited time a decades before that?