This fabulous antique print is Gamochonia: Octopus, Squid, Cuttlefishes, and has been taken from "Kunstformen der Natur" (Art Forms in Nature), by Ernst Haeckel, published by Bibliographisches Institut in Leipzig and Vienna (1914 edition). Google Ernst and you'll find out what a fantastic chap he was.
Robustly framed in antique Flemish style, the ebonised frame does have some signs of wear as shown, but don't we all? Glass fronted and properly sealed.
