PD-old-70-1923

Meyers b9 s0458a.jpg
© Unknown
Public Domain

Franz von Defregger Das..
© Franz Defregger
Public Domain

Simon Glücklich Kinder ..
© Simon Glücklich
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Esope et Philephe - Les..
© I Raymond fecit
Public Domain

OrbisPictus b 005 9.jpg
© Johann Amos Comenius
Public Domain

Wild animals of North A..
© Fuertes, Louis Agass..
Public Domain

Die Säugthiere in Abbil..
© Goldfuss, Georg Augu..
Public Domain

Die Säugthiere in Abbil..
© Goldfuss, Georg Augu..
Public Domain

Die Säugthiere in Abbil..
© Goldfuss, Georg Augu..
Public Domain

Pigeons and rabbits in ..
© Delamer, Eugene Seba..
Public Domain

Pigeons and rabbits in ..
© Delamer, Eugene Seba..
Public Domain

The wild beasts of the ..
© Finn, Frank
Public Domain

The quadrupeds of North..
© Audubon, John James;..
Public Domain

Music of the wild (Page..
© Stratton-Porter, Gene
Public Domain

Biologia Centrali-Ameri..
© Bale & Danielsso..
Public Domain

Wild animals of North A..
© Fuertes, Louis Agass..
Public Domain

The quadrupeds of North..
© Audubon, John James;..
Public Domain

Die Gartenlaube (1899) ..
© see below
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Garten und Feld Tafel 9..
© Eckstein & Stähl..
Public Domain

Garten und Feld Tafel 9..
© Eckstein & Stähl..
Public Domain