Truth be told, it started as the Johnson and Bye Company, but eventually Johnson bought out Bye and went at it alone.

The Fitchburg, Massachusetts based factory concentrated more on its bicycles than its firearms and employed many Scandinavian immigrants including one Oscar Frederick Mossberg, who later went on to do some work in shotguns with his sons.

After 1955 the top side plate screw was eliminated, and from that time until 1961 the revolvers were known as 4-screw guns.

After 1961 that trigger guard screw was done away with and from here after the revolvers were known as 3-screw guns.

A question that comes up a lot is what are 5-screw, 4-screw, and 3-screw revolvers?

From 1905 to 1955 most Smith & Wesson revolvers had five screws, four held on the side plate and one in front of the trigger guard.

Stainless steel version of the all steel Smith & Wesson 539 and alloyed frame Smith & Wesson 439. Manufactured with both adjustable rear sights and fixed-sight.

Early production models manufactured with rounded trigger guard.

A look at the history of Smith & Wesson clearly shows how the company has been—and continues to be—at the forefront of innovation and manufacturing prowess.

From the time of the first totally enclosed cartridge—the .22 Short—introduced in 1857 to the modern X-frame in .460 and .500 S&W Magnum, the company has met the needs of handgunners, often before they even knew of that need.

Click for more info looks new this S&W Model 18-4 blue 22 LR. Great little "K" frame 6 shot revolver with 4 inch barrel. Frame is marked Model 14-3 which would be a .38 Special centerfire so was a factory mistake as it would be nearly impossible to convert ... This is a handsome revolver that has matching numbers on the frame, barrel, yoke, cylinder, and extractor. Click for more info Firearms are subject to pending sales.

Click for more info .22 Long Rifle has 6 inch pinned barrel with adjustable sights. The firearm shows wear and fading on the barrel, but the action is still crisp for it's age. Click for more info Serial #K236840, .22 LR, 6" barrel with an excellent, bright bore.

What made the Iver different from the Smiths was in the fact that it had an internal transfer bar safety.