Remember those videos I'd asked about a couple of days ago? This flanger is just like the one I remember being pushed up that branch line. Boxcab E50
Yup, I remember. The ones you'd be looking for are NG. They are numbered in alphabetic characters like OY, OM. SG equipment is numbered with numerals, like 052.
What I have from the CRRM on D&RGW OC is that it was built in 1885. When a car was built from another car they normally say that so this makes me think that OC was built as a Flanger in the first place. RIght now I can't put my hands on any OF roster history.
Found this: Ten wooden flangers were built by the Denver & Rio Grande (Burnham shops) between 1885 and 1888. In 1907 they were numbered OC to OL according to the new maintenance-of-way cars numbering scheme. They were rebuilt first in 1913 and again during the thirties or forties with a steel frame. Rebuilding after rebuilding, each flanger became different from the others, especially regarding the shape of the snow-clearing blades. Another flanger, OT, was bought used in 1920, it is now preserved on the Georgetown Loop Railroad (picture on Dave Dye's website). In 1951, three of the 1885-88 built flangers were scrapped, but the others survived until today, OC at the Colorado Railroad Museum, OF on the Durango & Silverton Narrow Gauge Railroad (picture on Dave Dye's website), OJ, OK et OL on the Cumbres & Toltec Scenic Railroad. OD is on display in Gunnison (picture on Dave Dye's website) and OG at La Jara (picture on Jessica Stacey's website).