The 2 Cicca Tenor 61 sets (December 1959), consist of 2 x an air horn, and a compressorSet 1 is 24 volts, and is in its original box. This box is affected by time (2 x air horn and the compressor 24 volts)Compressor = 16 cm high / Horns are 19.5 cm and 20, 5 c..