there's a texaco fire chief pump plate for sale on e-bay right now starting at ten bucks and it is supposed to be from 1940.
in my limited experience with these, i'm not sure if this is real or not, the first thing that jumped out in my mind was the manufacture date, it only has a month and a year, not a day, month, and year. secondly, it says made in USA at the bottom right corner. my plates all have the date in the lower right and made in USA in lower left, but mine are slightly newer than 1940.
so, with all that said, did they produce these things with only a month/year manufacture date up until a certain time period or specific year? and did the date swap corners with the USA after a certain time or year?