Colt Police Positive
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The Colt Police Positive is a small-frame, double-action revolver featuring a six-round cylinder, chambered for either .32 or .38 caliber. A .22 caliber model was also offered. Wikipedia
Barrel length: 2.5 in (63.5 mm); 4 in (102 mm); 5 in (125 mm); 6 in (153 mm)
Feed system: six round cylinder
Manufacturer: Colt's Manufacturing Company
Produced: 1907–1947
Sights: Fixed iron; half-moon blade front, V-notch rear