I inherited a pearl handled .22 caliber, 5 shot, nickel plated revolver from my father. The only information stamped on the gun (inside or out) is "CAL22/M" on the left side of the frame; and 1259 on teh top side of the barrel. The whole thing is less than 4" long. The trigger is not guarded and folds forward, parallel to the barrel. It was my grandfathers' and I'm trying to find out information about it. Can anyone point me in the right direction?