The Wolff truck developed as an early alternative to the Arch Bar truck common in the 19th century. Railroads known to have used this design in large numbers include the New York, Ontario and Western Railway, and the Mississippi Central Railway.

Kit contents:

• One Pair of trucks
• 2-56 screws

Wheel options:

• Kadee #523 33" Code 110
• Kadee #533 33" Code 88