Leopold and Rudolf Blaschka, Damaged glass model of female Paper Nautilus (Argonata Argo) before repair
Leopold Blaschka (1822–1895) descended from a family of glassblowers and flame workers, whose glass production can be traced back to the 15th century. Description from cmog.org. I searched for this on bing.com/images
Plate I. “Blaschka glass models of sea anemones.” Annual report of the Board of Regents of the Smithsonian Institution. 1917.
Glass jellyfish by Leopold and Rudolf Blaschka | Blaschka Glass ...