This is a nice, clean, used slate roof repair tool, designed to slide under the slates of the roof, and cut the nails of the slate piece that needs to be replaced. Since the nails are usually a soft metal, this type cutter is effective in most cases to cut the nail and free the broken slate to be replaced. This tool was made in U.S.A. and is marked on one of the labeles "AJC" which is a roofing tool distributor.  It's a nice quality tool with most of it's original paint intact.   This tool is 25.5" long overall, the flat straight part to slide under the slate is 17" from the tip to the L shaped part of the handle. A quality USA made slater's cutter/nail ripper in very good, usable condition!