For your consideration, here is a Vivitar 2000 Electronic Flash Unit with Instructions, made in Korea.  I tested it and it works fine.  The battery compartment is clean.  The flash unit has very little wear on it.  The folded instruction sheet has wear and creases on the covers.  It will be mailed in a box for protection.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (305.319q-.10bb)