Marshall Spot All B&W Print Retouching Dye, 1/2 oz. Bottle of Blue Black, Replacement for Spotone #1.

For spotting and retouching all types of photographic prints, from full matt to glossy. It penetrates into the emulsion and will not rub off. Produces a full scale of true photographic values to match tones on any print. Applied with a water color brush, it can be used for sharp line of soft blended out-of-focus areas.