It is thought that these revolvers, produced in Prescott's Worcester, Massachusetts armory, were manufactured in hope of a government contract. However, no records exist indicating that any were ever bought or issued by the federal government. Some are known to have been carried and used by Union officers and enlisted men during the Civil War, the above picture seems to confirm that.
However, the picture appears to show a brass frame which opens another "can of worms". J
They were good looking, strong and well made revolvers.The number of these revolvers produced is not known but the consensus seems to be that it was just a few hundred. Of that amount about 25% had iron frames and 75% brass frames.
Due to it's being an infringement upon the Rollin White patent, which was assigned to Smith & Wesson, production was stopped in 1863.