Delco Remy HEI distributor #1112864 for a 1974 Chevrolet with a 400 cubic inch engine.  The date code on it is 4E 15, which is May 15, 1974.  This piece probably has other General Motors applications, but I'm not sure what they might be.  It comes with the cap and spark plug wires.  There doesn't appear to be anything wrong with the distributor or any of the attached parts.  However, it hasn't been tested and it is being sold as-is.