Brand: Gampertbräu Weissenbrunn.
Producer: Gampertbräu Gebr. Gampert GmbH & Co. KG.
Description: White crown cap. Red circle with white text: Gewinnspiel - www.gampertbraeu.de. Green logo and text: Gamperbräu WEISSENBRUNN. Inside generic code.
Later: 4LCACKTR
Factory sign: R.R.K. (Roland Rauh Kronach).