@ajzend posted:I thank everyone who replied. I think I’m buying into the W stands for white.
Would the temporary use of the W at first indicate that initially other colors were contemplated?Alan
You are welcome!
According to my copy of the Maury Romer notes on Gilbert production, a 933 other than with white sides and Tuscan-painted roof and ends was never contemplated. Most likely, the use of the the 'W' was a carry over from the practice of its use with the 633W. The product notes do have listings for the 633R and 633W (white with Tuscan-painted ends and roof). There is not a listing for the 633T (which is a known more scarce Tuscan-painted variation) and the 633F (for the 4605F G. Fox and Co. set which is rare).
Bob