"He built the first perforating machine for the use of the government in the stamp department;" (This was for the Bureau of Engraving and Printing.)
"When postage stamps were required to be perforated in 1857, he was selected to make the machines, and operated them for the contractors, Toppan Carpenter & Co.," (Thus, he made the first perforators that perforated U.S. postage stamps in 1857.)
"When the Bureau in 1861 commenced to furnish the post office with stamps, he built the rotary perforators." (It wasn't until 1894 that the BEP printed postage stamps. Thus, it may refer to some U.S. revenue stamps in 1866.)
