Yes, Mr. Tyson seems to be a bit confused. Captain Paul Curtis was no one's gun designer as far as I know. Arthur P. Curtis was a superior gun designer, was employed by several gun companies in high positions, wrote very technical articles in American Rifleman and other publications. He designed and built try guns on Parker, Smith, Lefever, and other actions. He did not build the Parker Brothers factory try guns, but those guns used features of Curtis' earlier designs.