Blaschka Glass Models

Leopold Blaschka was a Bohemian glass worker with a love of natural history. He moved to Dresden after the birth of his son, Rudolph, so that the boy would have better educational opportunities. Blaschka’s paying work was mostly glass eyes and test tubes until Prince Camil de Rohan became intrigued with some botanical models that Leopold had made for himself. The prince had a huge collection of plants and flowers and commissioned orchid models from Blaschka in 1860. That same year the Dresden State Museum asked if he could create glass models of invertebrate creatures. Blaschka could. Museums around Europe began commissioning models of plants and sea creatures and Blaschka soon dropped all his other work.

Rudolph joined his father in the project and the pair turned out thousands of glass models over the years. Harvard became interested in the models and, from 1887, thanks to the genrosity of the Ware family, the Blaschkas worked exclusively for that university, creating more than three thousand botanical models.

The Blaschka family.

Leopold’s first efforts were based largely on Ernst Haeckel‘s famous drawings but after dealing with Rohan, he worked more from preserved or living specimens. Rudolph took a long ocean voyage in 1892 to study plants in North America and the Caribbean.

Blaschka drawing

The models are made of layers of glass sometimes reinforced with metal wires. The colors are powdered glass painted onto the main body, then scratched or formed into leaf veins or other details. The glass was heated over and over again, something which has affected its durability.

Harvard display case for Blaschka Cacao models. (c) courtesy, photo by Adam Blanchette.

The models are very fragile — the first specimens shipped to the United States were broken in Customs — and repairs sometimes need to be done.

“I don’t know how we could clean that,” sighed a Harvard curator. (c) President & Fellows, Harvard College, courtesy Blaschka archives, photo by Hillel Burger,

Before and after shots of a Paper Nautilus at the National Museum of Wales

But some of the glass seems to be deteriorating as well. Powdery white glass corrosion is visible on some specimens and, in others, parts of the models are separating. Most of the troubles seem to be from models made in the late 1880s and early 90s. Rudolph complained about the quality of glass supplied to him then and began making his own glass after this time.

[Video of Micro CT scan of above squid model done to determine how the glass is layered.]

Probably these museum models could have been done in wax and served the stated purpose as study objects, but the beauty of glass entrances everyone who sees these wonderful creations and their value today is as works of art.

Leopold died in 1895 and Rudolph carried on alone until 1938 when, at the age of 80, he said he was just too tired to continue. He died the next year. The Blaschkas never hired an apprentice and Rudolph had no children. Their methods died with them.


“Flowers Out of Glass” by Nancy Marie Brown. A very good article that gets into the Blaschkas’ methods and attempts to restore and preserve these flowers.

Many museums have put photos of their collections on line. The Harvard collection has been exhibited in several places and a couple of short videos  have been made about it.
Dresden photos by Heidi and Hans-Jurgen Koch.
National Museum of Wales.


6 comments on “Blaschka Glass Models

  1. Blue says:

    The Blaschkas made more than 4,000 glass botanical models for Harvard, and 3,200 are on display in the Glass Flowers gallery at the Harvard Museum of Natural History, on the campus in Cambridge, MA. In addition, the museum currently has on display a selection of some of the University’s Blaschka glass models of marine invertebrates, in a new exhibition, Mollusks: Shelled Masters of the Marine Realm (thru Jan 2014). The museum is open daily 9 am to 5 pm, 361 days/year.
    Photo credit for the model of the flowering cactus: (c) President & Fellows, Harvard College, courtesy Blaschka archives, photo by Hillel Burger,
    Photo credit for Cacao model: (c) courtesy, photo by Adam Blanchette.

  2. nursemyra says:

    They’re really lovely

  3. Henri says:

    . It is accuare to say “847 model sets – totalling up to a several 1000 glass objects”

  4. Blue says:

    There are a total of 4,200 models of 847 different species of flowering plants, so perhaps ‘sets’ works but we don’t use that term. The father made thousands of models of marine creatures, but just a very few botanical models, until he accepted the commission from Harvard to craft the botanical models. The Wares’ donation to Harvard persuaded the Blaschkas to turn to flame-working only botanical models, and cease their successful marine model business.

  5. […] on the internet and I carelessly scooped it up. One other time I got a smack on the wrist for using photos on this blog that were not properly attributed to the photographer. The place where I had gotten the pictures had […]

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s