Did a quick search this morning on the DPL's D&RGW Papers equipment drawings page for 1250-1449 dump cars:
[
eadsrv.denverlibrary.org]
These predate the 1920s rebuild so should reflect the original center-dump configuration, there are some dated 1924 which would obviously reflect the rebuild. There may be others, not as clearly identified. Remember, this is only a listing of drawings available thru DPL, not links to the drawings themselves. Tremendous resource.
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Equipment drawings - 6th;Rg17B;Sec16;Sf7;Box13;OVFF12
- Cast Iron Details, Narrow Gauge Dump Cars 1250-1499 1420 C-149 February 5, 1903
- Ratchet Wheel, Narrow Gauge Car Numbers 1250-1449 1078 C-149 August 16, 1902
- Winding Shaft Bearing, Narrow Gauge Car Numbers 1250-1449 1084 C-149 August 22, 1902
- Winding Shaft Bearing, Narrow Gauge Car Numbers 1250-1449 1085 C-149 August 22, 1902
- Winding Shaft Pawl Lock, Narrow Gauge Car Numbers 1250-1449 1082 C-149 August 18, 1902
- Winding Shaft Pawl Lock, Narrow Gauge Car Numbers 1250-1449 1083 C-149 August 18, 1902
Equipment drawings - 6th;Rg17B;Sec16;Sf6;Box8;OVFF3
- Narrow Gauge Dump Cars 1250-1499 1166 C-146 June 12, 1903
(this one would probably be the best one for overall arrangement, whereas they others would be specific details)
Equipment drawings - 6th;FFC16;Sf1;OVFF97
- Sketch Showing Change in Chain Shaft, Narrow Gauge Dump Cars 1200-1499 3010 C-349 February 6, 1903
I can't speak to the quality of these drawings (yet!), but the drawings I've purchased from DPL have been pretty nice, and the staff is very helpful (make them your freinds). I generally consider myself more of a D&RGW 1940s kind of guy, but these cars are just too cool.
Anyway...
Mike McKenzie
Frankfort IL