.450 Webley caliber, 6″ octagon barrel with rotating extractor mechanism. Finished in high polish blue with checkered walnut grip. Hammer block safety located on the left side of the frame. The unique extractor mechanism works by rotating the barrel 180 degrees with moves the barrel forward along with cylinder leaving the extractor in place to eject the spent shell casings. The maker’s name appears on the top strap. Thomas’s patent number on the side of the frame.