AFE 19145, Loop Tower, Wisconsin, 1921. Install Low Voltage Interlocking to Be Operated From State Line Tower, Remove Mechanical Interlocker. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Cost: $9135. Series II. Lines East. Other Subject Categories: Crossings, Interlocking Plants

AFE 19385, Loop Tower, Wisconsin, 1922. Remove Present Crossover 240' Long and Construct New Crossover 390' Long at New Location. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $3105. Series II. Lines East. Other Subject Categories: Track, Track Laying and Removal

AFE 41574, Loop Tower, Wisconsin, 1929. Reduce Curvature to 1 Degree on Curve. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $900. Series II. Lines East. Other Subject Categories: Track, Track Laying and Removal

AFE 52142, Loop Tower, Wisconsin, 1936. Sell 13.32 Acres of Abandoned Right of Way. Interstate Commerce Commission Account Number 2 Land for Transportation Purposes. Cost: $-40. Series II. Lines East. Other Subject Categories: Land

AFE 7289, Loop Tower, Wisconsin, 1918. Install Standard Three Position Signal. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Cost: $159. Series II. Lines East. Other Subject Categories: Signals, Train Order