Kalong-drawing, Gustav Mützel, 1927 book

"kalong, pteropus celaeno herm. 1/5 natürlicher größe. " translation (partly): "large flying fox, pteropus vampyrus herm. 1/5 natural size. " size: 5. 2 x 5. 1 in² (13. 3 x 12. 9 cm²). Date: 1927 book.