According to everything that I have, the G&F's PS-1 boxcars were built/delivered in September 1959. However, I just stumbled across some O scale decals that were printed for these cars in 1957 but show the build date as being July 1956. Was this an indication that maybe the G&F was trying to obtain these cars in this time frame versus the delivery date in 1959?
Another thing, It appears that some of the cars were painted all green and some had green sides with black ends. Does anyone know why? Or have a roster as to which ones were painted how?