Little Giant Adding Machine horns The Cema iHorn is a

The Cema iHorn is a big bell radio horn made in Paris in 1924

This horn is so rare this is only the second one of these iHorns ever made

The Amplitone iHORN  is made from an early 1900s Crytal Radio headset amplifying horn

The Duaflex were designed as a cheap

Little Giant Adding Machine horns The Cema iHorn is aThe Little Giant Adding Machine iHORN is made from an antique Little Giant Adding Machine. It was patented in 1924 by John Pfeifer of Springfield, Ohio. Mr. Pfeifer was a free thinker with a creative mind to solve mechanical problems of the times. During his lifetime he took out over sixty patents, including calculating machines, cash registers, change makers, grave vaults, dictaphones, morgue tables, automatic curtain hangers, signal devices, locks