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PapierformateAbisA. Modell der Papierformate bis in originaler Gre im ScienceMuseum Barcelona own Dr Ing Wetzel Analemma at org de Analemma Original upload log page de PapierformateAbisA Analemma bytes no Information Modell der Papierformate bis in originaler Gre im ScienceMuseum Barcelona Eigenfoto Dr Ing Wetzel alias