Carbody at Thompson, number 0799 as shown in one of the pix posted in this string, does appear in D&RGW Official Roster #11, 4/1/1923, as standard gauge office and dining outfit car, one of two such, numbered 0798 and 0799. In i926-27, this series of cars (0773--0799, less at least two) was renumbered 010140--010164; by 10/1/1937, only five of the 25 cars in this series remained, the first and last of which were 010141 and 010158, from which it may be concluded that the 0799, probably renumbered 010164, had been retired by 10/1/1937.
Undoubtedly the car was always a standard gauge vehicle, built that way as a B & B Dept Construction car in 1890 (0794-0799 Broad Gauge Construction make their first appearance in the Official Railway Equipment Guide [later Equipment Register] in the issue of May 1890), later simply classed as an outfit car of subtly varying varieties until retired and set out at Thompson's. The roster in 1923 shows the car as having an inside length of 41 feet, 1-3/8ths inches; inside width 8 feet 2 inches; inside height 6 ft 6 ins. The car is probably the last survivor of the class, and as such worth some attention