I think it's interesting that the pix of 452, that some say looks better on ON3 track than it does on ON30 track. Number 452 is a STANDARD gauge locomotive that was rebuilt for the DRGW as a 36 inch NARROW gauge loco! I model in ON30 and in the past I modeled in ON3. When the prices of ON3 exceeded my budget I switched to ON30 and find the modeleing to be just as rewarding at about half the costs and the models just as accurate. Russ
Ummm... Not really. 452 was a K27, which was built by Baldwin as narrow gauge Vauclainian Compound locomotive in 1903. It converted to single expansion locomotive somewhere between 1907-1909
The K37's were rebuilt from standard gauge 2-8-0's during 1928-1930.
Rusty