The S&W brand ammo was made and sold around 1971-81. The .22 ammo was made by Aguila of Mexico and came in standard and high velocity and in .22LR and .22 Short, along with two different blanks, one for indoors and other was outdoors/extra loud IIRC.

Your .22 ammo is collectable and would be worth holding onto or to sell it off as collectable ammo.