
Robert Demachy · 1898
Rouen
- Year
- 1898
- Original process
- Gum bichromate
- Held at
- Camera Notes (Photo-Secession)
Key facts
- Edition
- Signed and numbered limited edition
- Authenticity
- Official certificate of authenticity
- Chemistry
- Non-toxic process (Vision Picturale recipes)
- Year
- 1898
- Original held at
- Camera Notes (Photo-Secession)
- Public domain
- Since 2007 (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
Atmospheric townscape of the Norman capital, published in Camera Notes vol. 1 n° 3 — Alfred Stieglitz's pre-Camera Work journal of the Photo-Secession. Rouen 1898 stands among Demachy's earliest internationally circulated gum bichromate prints, four years after he and Maurice Bucquet had inaugurated the first Salon de Paris (1894) at the Photo-Club de Paris, and three years after Demachy's election to the British Linked Ring (1895). The choice of Rouen is not innocent: the city carried the painterly memory of Monet's cathedral series of the 1890s, and Demachy, son of the banker Charles-Adolphe Demachy and intimate of the Alphonse Daudet literary circle, was deliberately importing into photography the vocabulary of late Impressionism. Technically the print is a single- or double-coat gum bichromate: gum arabic sensitised with potassium bichromate, tinted with watercolour pigment, exposed under a large-format negative and brushed selectively under tepid water until the desired atmospheric softness emerges. The result is the opposite of an architectural document — Rouen is reduced to grey-blue planes, the spires dissolved into pigmentary haze, what Demachy would later describe in Procédés d'art en photographie (1906, with Constant Puyo) as the photographer's right to subtract from the image as a painter subtracts from a sketch. The work also testifies to Demachy's Norman attachment: he would later retire to Hennequeville and traverse Normandy as his territory of choice. At Maison Picturale, this kind of townscape is re-transposed in non-toxic gum bichromate following the chemistry reformulated by Vision Picturale, on 640 g/m² cotton paper, allowing the heavy painterly matter of the master to be revived without the bichromate toxicity that defined his original workshop.
Reference file : Robert Demachy, Camera Notes 1898 — Public Domain / Wikimedia Commons
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.



