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Item no. P2863a (postcard)
Type: cover
Country: Czechoslovakia
Date of use: 15 May 1969
Postcard (front of) used as a request for scientific article. It was sent by MUDr. Vácha Petr of Research Laboratory at School of Medicine in Olomouc (Czechoslovakia) to Polish scientist Dr. Władysław MARKOCKI [Dept. of Fototechn.] at Technical University of Wrocław (Politechnika Wrocławska, Poland).
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