For your consideration, here is a Vintage Omega Tools Pocket Level, made in the USA.  It measures 4 7/8 inches long, 1/2 of an inch wide and tall.  It works fine.  It has some wear and tarnish on it.  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.  (484.17d-.5bb)