The revolver in the second half of the 19th century. From cap and ball to the self-contained cartridge. Smith & Wesson in the USA. Eugène Lefaucheux in Europe. The English Tranter revolvers. Evolution of the English revolver's double action lock. The first Webley cartridge revolvers. The first Webley solid frame revolver. Webley revolver of 1866 in caliber. 577".