large signal lamp or Fl. Blinkgerät marked blc

Very nice original large signal lamp or Fl. Blinkgerät in very good condition. One of the leather closing pull tabs is missing which has been repaired with a small piece of rope. The plug has been replaced by a new modern example. The lamp retains a lot of the original factory applied paint and even the spare light bulb on the inside. The lamp is nicely marked blc which indicates production by Carl Zeiss, Jena. Very nice example!