Great Northern Auto Boxcars GN 43900 to 43999
Trying to track down photos of GN automobile boxcars in the series GN 43900 to 43999. Particularly in later years after the steel doors were applied. Also the end doors are shown being welded shut sometime between 1948 and 1955. Anyone able to nail down specific dates? Interested in cars 43940 and 43948 that went to Longview Fibre in Longview, WA.
Also does anyone have GN standard lettering drawings from the 1950's?