Leopold Blaschka (1822-1895) and his son Rudolf (1857-1939) lampworked glass in Dresden, Germany. With glass torches, pincers, and other hand tools they made invertebrate sea animals. They created these realistic models from glass tubes and rods.
The Botanical Museum of Harvard University was impressed with their accuracy. in 1887, it hired the Blaschkas to make plant models as teaching tools. The Blaschkas produced several thousand. They were unmatched in delicacy and accuracy.
- from the Corning Museum of Glass display card