at Chicago in 1883. In early 1893, the locomotive and tender 

 were taken from Washington to New York City, and on 

 April 1 7. proceeded under steam, pulling two old cars of the 

 period of 1836 (figure 34), to the World's Columbian Exposi- 

 tion at Chicago. It arrived without mishap on April 22 after 

 having covered 912 miles. The locomotive and tender were 

 returned to the Museum in December 1893 after having 

 made daily demonstration runs at the exposition. They re- 

 turned to Washington under steam via Pittsburgh, Altoona, 

 Harrisburg, and Baltimore. The next time the locomotive 

 left the Museum's confines was for a brief sojourn at the Fair 

 of the Iron Horse in 1927 (figure 35). More recently it ap- 

 peared at the Chicago World's Fair in 1933 and the New 

 York World's Fair in 1939 and 1940. 



In early 1940, a full sized operable replica of the John Bull 

 locomotive (figure 36) was made at the Altoona shops of the 

 Pennsylvania Railroad Co. The cylinder dimensions of 11 

 by 20 inches were apparently known by the shops at that 

 time, as the drawings made then for use in building the 

 replica show the bore and stroke to be 10% by 20 inches. Per- 

 haps the bore of the original locomotive was also 1078 inches 

 in 1831, and was increased to 1 1 inches through many years 

 of wear. However, the figure of 9 inches for the bore, so often 

 used in the past, is definitely incorrect. 



-aipppwi ■■■■■ilMipi 



Figure 33. — As this early photo shows, the John Bull toward the end of its active 

 career had a cab and large smokestack, and an 8-wheeled tender was used. 



44 



