You guys are right!

In 1993, I wrote an article for the Journal about 694105. It was ordered in the summer of 1940, and the factory response was that round-butt 2" .38's were book-ordered, which was taken to mean that they were all sold, and none were available, probably to commercial orders. Roy thought that they were being used at Ft Mason.

At some point, WWW2 demand for S&W revolvers forced the factory to drop the round-butt frames, and make square butt frames only. I presume that Ft Mason was still needing more 2" revolvers, and so they would have been with square butts.

I will correct my mistake!

Thanks for the careful reading, Mike