Designed by Hugh Gabbet-Fairfax, this semi-automatic pistol first produced on an experimental basis by Webley & Scott Revolvers in the 1890s. After Webley gave up on the idea an extremely limited number were built by Mars Automatic Pistol Syndicate, Ltd., 1897 to 1905. Pistol produced in four calibers; 8.5mm Mars, 9mm Mars, .45 Mars Short Case and .45 Mars Long Case. Most powerful handgun cartridge of its time and remained so until well after World War II. It is estimated that only about 80 of these pistols were ever produced. NOTE: Webley examples are worth a premium. Small "Baby" model may bring a premium.