Iowa traction number 50 is a 50-ton steeplecab, built by Baldwin-Westinghouse in 1920 as Washington & Old Dominion Number 50. It was acquired by the Cedar Rapids & Iowa City in 1947, was rebuilt and renumbered number 58. In 1955 it was sold to the Kansas City-Kaw Valley Railroad and became their number 507. Finally, in 1962 it was sold to the Iowa Terminal and renumbered 53, later becoming IATR 50. The unit is seen here switching out Mason City's AGP plant
