Three-quarter view of left side of engine, from front end; New York World's Fair; exhibition locomotive, "Thatcher Perkins". Photographed: New York, August 4, 1939.
Railroads--Equipment and supplies--1930-1940.; Railroads--Trains--Pictorial works--1939.; Railroad equipment--New York.; Baltimore and Ohio Railroad Company.
Three-quarter view of left side of engine, from front end; New York World's Fair; exhibition locomotive, "J. C. Davis". Photographed: New York, July 23, 1940.
Railroads--Equipment and supplies--1940-1950.; Railroads--Trains--Pictorial works--1940.; Railroad equipment--New York.; Baltimore and Ohio Railroad Company.
Three-quarter view of left side of engine, from front end; Century of Progress; exhibition locomotive "Memnon". Photographed: Chicago, Ill., August 3, 1934.
Railroads--Equipment and supplies--1930-1940.; Railroads--Trains--Pictorial works--1934.; Railroad equipment--Illinois--Chicago.; Baltimore and Ohio Railroad Company.
Three-quarter view of left side of engine, from front end; New York World's Fair; "camelback," exhibition locomotive, "Ross Winans". Photographed: New York, July 23, 1940.
Railroads--Equipment and supplies--1940-1950.; Railroads--Trains--Pictorial works--1940.; Railroad equipment--New York.; Baltimore and Ohio Railroad Company.
Three-quarter view of right side of engine, from front end; New York World's Fair; exhibition locomotive, "Thatcher Perkins". Photographed: New York, August 5, 1939.
Railroads--Equipment and supplies--1930-1940.; Railroads--Trains--Pictorial works--1939.; Railroad equipment--New York.; Baltimore and Ohio Railroad Company.