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Beldt's Aquarium, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Beldt's Aquarium, 1939)

Beldt's Aquarium, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Beldt's Aquarium, 1940)

Beldt's Aquarium, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Beldt's Aquarium, 1941)

Beldt's Aquarium, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Beldt's Aquarium, 1942)

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Beldt's Aquarium : 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Beldt's Aquarium, 1950)

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Beldt's Aquarium Inc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Beldt's Aquarium, 1958)

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Blätter für Aquarien- und Terrarien-Kunde (1895)

Blätter für Aquarien- und Terrarien-Kunde (1897)

Blätter für Aquarien- und Terrarien-Kunde (1902)

Blätter für Aquarien- und Terrarien-Kunde (1903)

Blätter für Aquarien- und Terrarien-Kunde (1904)

Blätter für Aquarien- und Terrarien-Kunde (1905)

Blätter für Aquarien- und Terrarien-Kunde (1906)

Blätter für Aquarien- und Terrarien-Kunde (1907)

Blätter für Aquarien- und Terrarien-Kunde (1908)

Blätter für Aquarien- und Terrarien-Kunde (1909)

Blätter für Aquarien- und Terrarien-Kunde (1910)

Blätter für Aquarien- und Terrarien-Kunde (1911)

Blätter für Aquarien- und Terrarien-Kunde (1912)