RDC demonstrator
The following information comes from the book The Budd RDC in Canada and Canadian Trackside Guide
Budd demonstrator 2960 (s/n 2960) built 1949.
Used on CNR in Feb 1951.
Used on CPR for 2 weeks on 1953.
Purchased by CNR in 1965 in a frenzy of used RDC buying.
Renumber D110, then 6110. Became VIA 6110.
Sold to Farmrail System, Clinton OK in 1999.
I assume it spent most of the time from 1949 to 1965 demonstrating in the US.