The new drawing depicts the engine Iron City.
I asked if John could do a version of the drawing showing the flexible beam 0-8-0 engine Washington, as used on the USMRR Aquia Line. John quite correctly pointed out to me that the Washington was likely an older and smaller design. He would need to do more research before he could do a proper drawing.
I have never seen a drawing or photo of the Washington. So I contacted my friend Nick Fry, curator at the John W. Barriger III National Railroad Library and Vice President-Operations, BORRHS
for help. Sure enough he hit pay dirt. He sent me this scan of by Edward Wiswesser's book, "Steam Locomotives of the Reading and P&R Railroads." Nick believes that the USMRR Washington was probably of the same class as the Baldwin built P&R Pocahontas, which is similar to the Princeton in the photo below. Although a flexible beam locomotive, it is quite up-to date in appearance for an ante-bellum locomotive. I suppose the loco had a standard tender behind it. Such a loco would make a good scratch building project for me.