Hi,
I was looking into the T12s a few months ago. 168 and 169 were built with the "old style" drawings as delivered. This included the small diamond stack and the short smoke box.
IIRC, all the others were delivered with the extended smoke box and straight stack.
I was looking at "Locomotives of the Rio Grande" from the CRRM.
Doug vV
--------------------------
Carrie Fisher quotes:
Instant gratification takes too long.
I was street smart, but unfortunately the street was Rodeo Drive.
--------------------------
Luna Lovelace (Harry Potter):
I sleepwalk you know that's why I wear shoes to bed.