Mark 55H not sure if this is an actual 55H or one built from a stock block.  Very nice engine from Jesse Hill collection. Has a plate on the lower unit access that reads "Barnes". Nice gear case, new cone nut, KA7A carbs, Fairbanks magneto, No tag, needs tilt pin and impeller, welded lower pan lifting handle as shown at front of engine. A couple of extra holes are in the top cowl.  We quote 10 day delivery so we can build a proper crate and test the engine.