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Linaria alpina. Nenke and Ostermaier. Photochromie
Linaria Alpina. Nenke and Ostermaier. Photochromie
Atragene Alpina. Nenke and Ostermaier. Photochromie. 460
Leontopodium alpinum. Photochromie. Nenke and Ostermaier. Alpenflora. Serie 548. Nr. 1222
Rhododendron ferrugineum. Photochromie. Nenke and Ostermaier. Alpenflora. Serie 568. Nr. 1402
Primula integrifolia. Nenke and Ostermaier. Photochromie Alpenflora. Serie 568. Nr. 1404
Riviera di Ponente. Mortola. Photochromie. Nenke and Ostermaier. Serie. 137. No. 2620
Leontopodium Alpinum. Photochromie. Nenke and Ostermaier