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Circular arm rolls

Circular arm rolls


The Ling gymnastics system became fashionable in Europe at the turn of the century and several Swedish instructors opened clinics abroad, or were employed by institutes and health resorts. Theodor Bergquist was one of them. He became director of the Swedish Gymnastic Institute in the Bavarian spa town of Bad Wörishofen, and decided to produce this exercise manual with its delightful “action” photographs.



  • Series title: Swedish home gymnastics based on the P.H. Ling System
  • Series size: 16 artworks
  • Edition: Limited edition of 1000
  • Proof of Ownership: Certification on the Ethereum blockchain under the ERC1155 protocol. Each artwork is delivered privately and directly to collectors as non-fungible tokens (NFTs) that guarrante proof of ownership.
  • Format: Pieces consist of PNG files sized 2160x3840 pixels - 150 dpi.
  • Medium: Photography
  • Artwork materials: Photographic paper
  • Contract Address: 0x495f947276749ce646f68ac8c248420045cb7b5e
  • ID: 2749212597480566...



The multiple exposures used by this photographer, who is uncredited, make it easy to see the required exercise movements. The technique wasn’t new at the time, and dates back to the 1860s, when photographers figured out how to do it.  Its start was very likely accidental, when film was exposed twice in the same frame. But once discovered, the technique was taken in novel artistic directions, as seen here.



  • Historical curatorship: HARI - Historical Art Research Institute (HARI Editions)
  • Artwork: Unknown
  • Year of original publication: 1913
  • Post-production: HARI - Historical Art Research Institute (HARI Editions)
  • Digital art supervisor: Marie-Lou Desmeules
  • Editorial: Braden Phillips
  • Historical research: Evangelos Rosios, Braden Phillips
  • Executive production: Victor Zabrockis



  • Source of artwork: Wellcome Library
  • Underlying work rights: PD U.S.
  • Digital copyrights: No Additional Rights