The camelback shape for a straight key dates back more than 150 years. Charles Chubbock in 1848, Thomas Hall, and Chester Brothers in New York produced some of the earliest keys with the characteristic “hump”. This key was inspired by the beauty of that shape, although it does not try to replicate any of the classical designs (unlike our Postal Key, which is a faithful replica of a classical key of about the same era as the earliest camelbacks) Most old camelback designs have the hump located before the pivot to shift the mass more towards the knob.