The Position Light: I 'C' You - Caltrain Adopts SP Commuter Plates? position-light.blogspot.com/2026/08/i-c-... #Caltrain #SouthernPacific #RailwaySignaling
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@prrsignal.bsky.socialThe Position Light: I 'C' You - Caltrain Adopts SP Commuter Plates? position-light.blogspot.com/2026/08/i-c-... #Caltrain #SouthernPacific #RailwaySignaling