Urkunde des Zentralinstituts für Schweisstechnik der Deutschen Demokratischen Republik in Halle (Saale) für Gerhard Freimark, ausgestellt ebendort am 25.10.1952. Laut Urkunde bestand Gerhard Freimark an diesem Tage die Prüfung zum "Kunststoff-Lehrschweißer f. Rohrleitungsverlegung".
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