AFE 49235, Helena, Montana, 1934. Rebuild 10 X 12 Frame Tower; Replace Interlocking Machine to Replace Equipment Destroyed by Derailment 11/4/34. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Series II. Lines West. Other Subject Categories: Towers, Interlocking
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LC Name Authority: https://lccn.loc.gov/n80007662