PINTSCH BAMAG RKN 12 BQ light beacon NOS

Rare Pintsch Bamag RKN 12 BQ in new old stock (nos) condition. With original blue lens, base seal and all in very good condition. I just installed the first bulb in the lamp to test it and it runs as new. The base is painted in police green. The lamp is 20 cm height, the blue lens is 14,5 cm height and the base diameter is 15 cm. The base is stamped with "PINTSCH BAMAG DINSLAKEN, Typ RKN 12 BQ, Lampe H1, 12V 55W, B1012, DIN" and the motor is stamped with "12V". The RKN12BQ was made in Germany in Dinslaken.