Traded for this recently and is pretty cool. It has The old mechanical flasher attached to one of the arms and it still works. the cans are Signal Stat "sigstat" cans. The dampers are still working good also considering the date i found in the flasher says 9/72. Once the arms are fully raised they are locked in by a self latching pin and then you have to pull to release it down. In overall good condition for 45 years old i'd say.
