Two Mondorf stamps by P.C. Schoren, 1909, Norbert Hansen collection
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MONDORF. 1. The spring, P.C. Schoren, No. 10870, 1909, stamp with stamp on face, 2. The lioness in the park, P.C. Schoren, No. 8460, 1909, stamp with stamp on face (From the Norbert HANSEN collection).
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