For bid is an original circa 1930's Mickey Mouse character "ONESIE" adult size vintage Halloween Costume featuring Mickey and Minnie Mouse characters walking down the street near a third mouse.  Design says, "Hello Everyone!"  I am not sure if this was a Walt Disney item or an early bootleg.  It's made of thin, black cotton like muslin.  It snaps down the center of the back from the neck down towards the center of the back.  It's about the size of a medium adult.  Here are some measurements we get:  Armpit to armpit: 19 1/2" Sleeve 23" Inseam of leg 28" approximate waist: 58 1/2 inches; Top to bottom 58 1/2 inches.

There is a 1930 Walt Disney Mickey Mouse book titled, "Hello Everyone!"  Not sure if there is a connection or not. 

This is a very typical style of Halloween costume in the 1920's and 1930's era: A black leotard onesie costume.  This costume has wonderful details.  It's a very interesting, early Disney-related costume.  No copyright information, so it may have been someone using Mickey Mouse characters in an unauthorized manner.  I am not 100% sure...