
Heinrich Kühn · c. 1897
Sailing Boat (Segelboot)
- Year
- c. 1897
- Original process
- Gum bichromate
- Held at
- Städel Museum, Frankfurt
Key facts
- Edition
- Signed and numbered limited edition
- Authenticity
- Official certificate of authenticity
- Chemistry
- Non-toxic process (Vision Picturale recipes)
- Year
- c. 1897
- Original held at
- Städel Museum, Frankfurt
- Public domain
- Since 2015 (CPI L.123-1)
- Printer
- Maison Picturale — Paris 20e studio
- Lead time
- Hand-made · 4 to 8 weeks
Maison Picturale reinterpretation in gum bichromate
About this work
Sailing Boat (Segelboot, c. 1897) is an early Pictorialist marine subject in gum bichromate from the Städel Museum collection in Frankfurt. The sheet is characteristic of Dr. Heinrich Kühn's atmospheric water studies from the late 1890s, in which a single vessel, a softened horizon, and a layered pigment surface combine to dissolve the documentary anchor of the photograph in favor of a painterly mood — a programmatic Pictorialist gesture aligned with the contemporaneous tonalist painting of Whistler and the Munich Secession. The work belongs to the early phase of Kühn's gum bichromate practice, before he developed the Platingummidruck (gum-over-platinum) hybrid for which he became internationally celebrated; its placement in the Städel's collection alongside other key Pictorialist sheets gives it institutional canonical weight. Dr. Heinrich Kühn (1866-1944), Austrian-German pictorialist, trained as a physician before settling in Innsbruck in 1888. He led the German-Austrian wing of Pictorialism as a co-founder of the Wiener Kleeblatt (Vienna Trifolium) with Hans Watzek and Hugo Henneberg, and was a close correspondent of Alfred Stieglitz, who published him in Camera Work pl. 18 (1905) and pl. 33 (1911), and Edward Steichen. He was among the first European photographers to adopt the Lumière Autochrome in 1907. His prints are held at the Albertina Vienna, MoMA, the Metropolitan Museum of Art, the Städel Museum Frankfurt, and Galerie Maier Innsbruck. Process Transposition Maison Picturale: Kühn's early marine gum bichromates are transposed at the Maison Picturale Paris atelier via Aquaprint MP, the non-toxic Vision Picturale reformulation, which preserves the atmospheric water tonality of Sailing Boat without the historical dichromate hazard. Kühn entered the public domain in 2015.
Reference file : Wikimedia Commons / Städel Museum (Public Domain)
Procédé Transposition
Each Maison Picturale print is a material reinterpretation of the image. Three readings of the same work — the original, its closest transposition, and a creative transposition into another procédé.
Multi-layer gum bichromate. Each pigment laid separately — VP reformulated recipe, no chromium VI.
MP procédé — reformulated non-toxic chemistry, signed by Tristan Sidem.
View the procédéHistory of the process
Watercolour gum (gumprint, gum bichromate print) is one of the most versatile and oldest photographic processes. Its principle was discovered by Mungo Ponton in 1839, who observed that paper soaked in potassium bichromate hardened under light. It was Alphonse Poitevin who, in 1855, had the idea of mixing watercolour pigment with sensitised gum arabic: by exposing this layer under a negative, the exposed areas harden and retain the pigment while unexposed areas dissolve during washing.
The gumprint enjoyed its golden age between 1890 and 1920, within the Pictorialist movement. Photographers such as Robert Demachy, Edward Steichen, and Gertrude Käsebier used it to create images halfway between photography and painting, asserting photography as a fine art in its own right. Each colour layer is applied, sensitised, and exposed individually — a four-colour print therefore requires a minimum of four passes.
Our approach
The gumprint made by Maison Picturale is an entirely handmade print where each colour layer is a unique pictorial gesture.
We work on 100% cotton satin watercolour paper at 640 g/m², capable of withstanding multiple watercolour passes without warping. In four-colour mode, each print requires four successive layers — cyan, magenta, yellow, and black — each individually sensitised, exposed, and developed. The result is an image with vibrant colours and a grain impossible to achieve with digital printing.
Inside our studio
1 Passage Dagorno, Paris 20e. Each print is hand-crafted by Tristan Sidem and Raphaël Lebas de Lacour, using Vision Picturale's reformulated non-toxic chemistry. Limited edition, signed and numbered.



Commission this print
- Hand-printed and signed by Tristan Sidem & Raphaël Lebas de Lacour
- Reformulated non-toxic chemistry (Vision Picturale recipes)
- Limited edition, numbered, certificate of authenticity
- 1 Passage Dagorno studio, Paris 20e
- Delivery 3 to 5 weeks · ships worldwide from France
Available formats
- 30 × 40 cmFrom 280€
- 40 × 50 cmFrom 420€
- 50 × 70 cmFrom 680€
- 70 × 100 cmFrom 1180€
- Custom sizeFrom 1850€
Indicative pricing — the exact rate depends on the chosen procédé, support and finish.
Contemporary print after a work in the public domain (CPI L.123-1, 70 years post-mortem). Hand-crafted reinterpretation by Maison Picturale's master printers — this is not an original vintage by the master. The mention 'after [Master]' is systematic on the print and on the certificate of authenticity.



