I am building a 7.5" gauge model of a 3' Baldwin Mogul of no particular prototype, and am at the stage of adding the external appearance items. I would like to find detailed information on these engines so I can finish my model with an authentic appearance of the small narrow gauge engines used in Colorado during the 1870s. I would appreciate any leads to sources of information that would help-pictures, diagrams, specifications, descriptions, locations of existing engines, etc. Thank you.