John D.
I did find in Gibson's book where he mentions the "7" issue.
Is there anything else in the book about the late-date assembled guns ? Other than the PX and the 3-digit, post-war late-dates, I cannot find any other info.
Or did the history/theory of these guns surface only after Gibson wrote his book...?
Regards,
Pete... <img border="0" alt="[typing]" title="" src="graemlins/yltype.gif" />