A set of 12V Hella high and low tone horns in new old stock (nos) condition. One (1x) low horn with 375 hz and one (1x) high tone horn with 500 hz tested and working very well. The diameter is 12 cm and the horns are stamped "Hella, Made in Germany, 003399” and the washers are stamped with "tief 12V" and "hoch 12V". The horns were stored in a longtime wood storage box and because of that you can see some white dots at the front and rear, which was some sort of “storage powder”. They may have very few paint damages from storage, but very little only, because stored very well. This is good old German quality and they can be used for police, ambulance, fire department fanfare horn systems with blue flashing beacon lights.