Operating Era: 1916-1975. Pennsylvania RR, New York Central, Baltimore & Ohio, Pittsburgh, McKeesport & Youghiogheny, Reading, Pittsburgh & Lake Erie. USRA ordered 4,500 46' mill gondolas for B&O, Reading, NYC (including PMcK&Y) and PRR. The cars were based on the W&LE design of 1916 but with wood floors because of war shortages. Like the other USRA designs, several railroads adopted it as their standard car of the 1920's. B&O, Reading and NYC ordered thousands of the cars. The unusual design was a pivoting brake staff that could be used whether the ends were tight or dropped. One Piece Sides and Ends. Decal Set Available. PLEASE SEE OUR CONTAINERS FOR GONDOLAS SECTION FOR OTHER #8100 SERIES KITS.