1979 Keystone Line action, with an ex-PRR Silverliner II heading west at the 52.0 signal. The old PRR Main Line passes through Mine Ridge's 560' summit just east of here, heading out of the Chester Valley into the Pequea (Peck-way) Valley. Note the "G" under the signal; part of Rule 291, Stop-and-Proceed: Stop. Then proceed at restricted speed. Except- freight trains of 90 or more cars or having tonnage of 80% or more of the prescribed engine rating may proceed at restricted speed without stopping at signals displaying a yellow disc on which is shown the letter "G" in black. (Displayed at the entrance to an occupied automatic block.) No. 212 was built by Budd in 1963 as PRR Class MP85B.
