Köbbler Sisters in ‘pas de deux de Shawl’ —Watercolor illustration by Johannes Jelgerhuis, 1812, Napoleonic era
According to Manon Schooneman, this illustration (drawn in 1812) is the earliest documented evidence of pointe ballet, which is the style of ballet where dancers stand on their toes.
This drawing was a surprising discovery because it was widely believed that the pointe technique was first performed in 1825 by the Swedish-Italian ballerina Marie Taglioni.
Background on the drawing:
Depicts an Austrian-German family of dancers, the sisters Köbbler, who moved to the Netherlands (which was then part of the French state under the Napoleonic Empire) in the 1810s.
(Source: Allard Pierson Vertelt: Tekening van de eerste spitz)
One of the most underrated elements of POSSESSION (1981) is how the use of ballet in the film actually relates to its many themes— which are themes that can be traced across other films that depict ballerinas (or other types of performers in the case of Perfect Blue—it just fit too well to not include)
Read my article Blood-stained Satin: A Reflection on the Aesthetics of Ballet in Horror on Beauty of Horror