This is the Mercedes-Benz from TootsieToy’s Midget series. These are approx. HO Scale, maybe a little bigger. Introduced 40+ years ago, this series was produced by TootsieToys from 1970-1977.  This does have some playwear as you can see from the photos, but retains 90% of its original paint!  It is a great cross-collectible, so if you collect TootsieToys, Vintage Diecast, or Mercedes this is a great find for your collection.