The Cema iHorn is a big bell radio horn made in Paris in 1924. It is made by Knoll & Marié. Because of the nature of the manufacturing company and its short history, becoming defunct in 1931, there is very little information available. This horn was purchased at an auction in Germany. This means that it spent its life in Europe, surviving the ravages of bombings during World War II to stand as a testament of survival. Today, the CEMA iHorn has a strength of character, and the wisdom of the ages.