Manufactured in 1963. The Model 61 Magnum was only manufactured from 1960 to 1963 after the .22 Win. Mag. R.F. was developed in 1959. Features beaded blade front and elevation adjustable rear notch sights, standard barrel markings, Winchester "WP" proofs on the barrel and receiver at the breech, and matching serial numbers on the upper and lower receiver groups. Fitted with a flat bottom grooved walnut forearm and smooth pistol grip stock with checkered plastic Winchester buttplate.