This is a new original Auto-Lite voltage regulator for 1955 Packard Clipper automobiles. The Packard part number is 439594. This is the exact Auto-Lite regulator that Packard installed on the assembly line, not a cheezy aftermarket "universal" one sold at discount houses.  This fits model 5540 only. The black paint will need a re spray. See my other listings for more Studebaker-Packard parts.        ST TOP