3rd Reich NSBO Tag der Deutschen Arbeit 1933

In an excellent condition a labour day badge 1933 NSBO stands for Nationalsozialistische Betriebszellen-Organisation Frontside: Tag der Deutschen Arbeit 1. Mai 1933. Hand holding a hammer with swastika on the metal wheel the letters N.S.B.O are present Backside: Safety pin is missing. No maker marks present