473214 The Paper Nautilus (Argonauta) and the Octopus, 1881 (litho) by British School, (19th century); Private Collection; (add.info.: The so-called paper nautilus, a name deriving from the paper-thin eggcase secreted by the female, is more correctly termed an octopus; inhabits tropical and subtropical waters worldwide; illustration from Cassell\'s Natural History, vol.V.;); Prismatic Pictures ; British, out of copyright.