July railroad CB&Q Detector Car #3, detector cars detected axle and signal problems in passing trains, as well as issues with the tracks. For more information on the Michael Lemberger Collection visit https://aspace.lib.uiowa.edu/repositories/2/resources/3157
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July railroad CB&Q Detector Car #3, detector cars detected axle and signal problems in passing trains, as well as issues with the tracks. For more information on the Michael Lemberger Collection visit https://aspace.lib.uiowa.edu/repositories/2/resources/3157