NSV national sozialistische volkswohlfahrt, porcelain badge.
The obverse design shows a Hitlerjugend boy with a NSB collecting tin. The badge was for a Winterhilfswerk (WHW) collecting, in which the NSV and Hitlerjugend helped out.
The colour on the photo is a bit more bright than in hand, hard to photograph in artifical light. A nice little badge for a small price.