The Smith and Wesson Model 64 Military and Police revolver is the stainless steel version of its Model 10. It is a six shot revolver chambered in .38 Special.
The Model 65, is similar but chambered in .357 Magnum, being a stainless steel version of the carbon steel Model 13. The Model 65 cylinder is longer to accommodate the longer .357 Magnum cartridge. The Model 65 was in production from 1972 until some time in 2004-2005, and utilized the same standard K-frame (S&W medium frame) as the Model 64.
A bicycle frame is the main component of a bicycle, onto which wheels and other components are fitted. The modern and most common frame design for an upright bicycle is based on the safety bicycle, and consists of two triangles, a main triangle and a paired rear triangle. This is known as the diamond frame. Frames are required to be strong, stiff and light, which they do by combining different materials and shapes.
Besides the ubiquitous diamond frame, many different frame types have been developed for the bicycle, several of which are still in common use today.