Germany. A Lot of Four Celebration Badges

A grouping of four third reich period German celebration badges; consisting of 1) A 1936 May 1st (Day of Labour) celebration badge; in aluminum; horizontal pinback; maker marked “Wilhlm Kolwitz, Bergedorf” on the reverse; measuring 36 mm in diameter, 2) A 1937 May 1st (Day of Labour) celebration badge; in gilt zink; horizontal pinback; maker marked “S. Heideanstalt, Oberstein” on the reverse; measuring 35 mm in diameter. 3) A 1938 May 1st (Day of Labour) celebration badge; in blackened zink; vertical pinback; maker marked “Gebrüder Schmidt, Oberstein” on the reverse; measuring 36 mm in diameter, 4) A 1939 RKB (Reichskolonialbund/Reich Colonial League) Rally in Vienna Badge; in blackened alloy; horiozntal pinback; unmarked; measuring 36 mm (w) x 49 mm (h); in overall fair condition.