Léon Gimpel, 1907, 15 June, Autochromes of Leon Gimpel, Supplement of the Illustration issue of June 15, 1907, Autochrome, L'Illustration, © L‘Illustration, LL/8931

Léon Gimpel, 1907, 15 June, Supplement of the Illustration issue of June 15, 1907, Magazine, Private collection of Mark Jacobs, Collection Mark Jacobs, © L‘Illustration, LL/9277

Léon Gimpel, 1907, 15 June, Oranges and Wisteria (Oranges et Glycines) - Supplement of the Illustration issue of June 15, 1907, Trichrome print, magazine illustration, Private collection of Mark Jacobs, Collection Mark Jacobs, © L‘Illustration, LL/9278

Léon Gimpel, 1907, 17 June, King Frederic VIII and Queen Louise of Denmark, Paris [the first news pictures in color], Autochrome, L'Illustration, © L‘Illustration, LL/8932

M. Meys (Boulogne s/Mer), 1908, 20 June, Page from the French magazine L' Illustration, Autochrome, reproduction, Private collection of Nadia Valla, © L‘Illustration, LL/8937

Agié, 1914, President Raymond Poincaré at Eze-les-Pins, Autochrome, L'Illustration, © L‘Illustration, LL/8933

Jean-Baptiste Tournassoud, 1918, 13 July, Flags of the 152nd infantry regiment. Autochrome by Commandant Tournassoud, Autochrome, Private collection of Nadia Valla, © L‘Illustration, LL/8934

Etienne Clementel, 1927, The Nympheas, by Claude Monet, Giverny, Autochrome, L'Illustration, © L‘Illustration, LL/8935

Etienne Clementel, 1921 (before), The Nympheas pond in the Claude Monet Giverny garden, Autochrome, L'Illustration, © L‘Illustration, LL/8936

Lumière Brothers, 1935, 9 November, Magazine cover for " L'Illustration", [L'Illustration (No 4836, 93rd year)], Magazine cover, Private collection of Nadia Valla, © L'Illustration, LL/13535

Lumière Brothers, 1935, 9 November, MM. Auguste and Louis Lumiere in 1895 at the times of the beginning of the cinema and 40 years later in 1935, MM. Auguste and Louis Lumiere photographed in the same pose., [L'Illustration (No 4836, 93rd year), p.299 bis], Magazine page, Private collection of Nadia Valla, © L'Illustration, LL/13538

Lumière Brothers, 1935, 9 November, M. Louis Lumiere in 1907: photograph taken at the time he developed the Autochrome process, [L'Illustration (No 4836, 93rd year), p.301], Magazine page, printed reproduction from an Autochrome glass plate - plaques Autochrome, Private collection of Nadia Valla, © L'Illustration, LL/13541

Léon Gimpel, 1935, 9 November, M. Louis Lumiere residence - Neuilly-sur-Seine. the study laboratories are in buildings located behind the house, [L'Illustration (No 4836, 93rd year), p.301], Magazine page, Private collection of Nadia Valla, © L'Illustration, LL/13542

Léon Gimpel, 1935, 9 November, Residence of M. Louis Lumiere, Neuilly-sur-Seine: the dining room, [L'Illustration (No 4836, 93rd year), p.302], Magazine page, Private collection of Nadia Valla, © L'Illustration, LL/13543

1914, 14 March, Magazine cover for " L'Illustration", [L'Illustration (No 3707, 72nd year)], Magazine cover, Private collection of Nadia Valla, © L'Illustration, LL/13545

Desboutin, 1914, 14 March, The colored wig in the Parisian high society - Duchesse d'UzÞs, [L'Illustration (No 3707, 72nd year), p.207], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13547

Desboutin, 1914, 14 March, The colored wig in the Parisian high society - Mlle de Morny, [L'Illustration (No 3707, 72nd year), p.207], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13548

Desboutin, 1914, 14 March, The colored wig in the Parisian high society - Marquise de La Torre, [L'Illustration (No 3707, 72nd year), p.207], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13554

Desboutin, 1914, 14 March, The colored wig in the Parisian high society - Mlles de Berteux, [L'Illustration (No 3707, 72nd year), p.207], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13553

1914, 18 July, Magazine cover for " L'Illustration", [L'Illustration (No 3725, 72nd year)], Magazine cover, Private collection of Nadia Valla, © L'Illustration, LL/13560

Léon Gimpel, 1914, 18 July, Untitled, [L'Illustration (No 3725, 72nd year)], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13562

Léon Gimpel, 1914, 18 July, Untitled, [L'Illustration (No 3725, 72nd year)], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13563

Léon Gimpel, 1914, 18 July, Untitled, [L'Illustration (No 3725, 72nd year)], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13567

Léon Gimpel, 1914, 18 July, Untitled, [L'Illustration (No 3725, 72nd year)], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13570

1932, 2 April, Magazine cover for " L'Illustration", [L'Illustration (No 4648, 90th year)], Magazine cover, Private collection of Nadia Valla, © L'Illustration, LL/13571

1932, 2 April, Hyacinths and tulips [Un en ensemble de jacinthes et de tulipes], [L'Illustration (No 4648, 90th year), p.409], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13573

1932, 2 April, Hyacinths at the foot of the trees of Judaea [Jacinthes au pied des arbres de Judée], [L'Illustration (No 4648, 90th year), p.409], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13574

1932, 2 April, A flowered grass [Un gazon fleuri], [L'Illustration (No 4648, 90th year)], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13575

1932, 2 April, A field of crocus, narcisses, anemones and tulips [Un champ de crocus, de narcisses, d'anemones et de tulipes], [L'Illustration (No 4648, 90th year)], Magazine illustration, Private collection of Nadia Valla, © L'Illustration, LL/13576

1941, 30 August, Magazine cover for " L'Illustration", [L'Illustration (No 5138)], Magazine cover, Private collection of Nadia Valla, © L'Illustration, LL/13577

M. Lecoufle, 1941, 30 August, Seedlings of orchids showing their progressive growth, [L'Illustration (No 5138)], Magazine cover, Private collection of Nadia Valla, © L'Illustration, LL/13580

Deschamps, 1941, 30 August, Seedlings of cattleya, [L'Illustration (No 5138)], Magazine cover, Private collection of Nadia Valla, © L'Illustration, LL/13582

M. Lecoufle, 1941, 30 August, Macrophotograph of cattleya seeds, [L'Illustration (No 5138)], Magazine cover, Private collection of Nadia Valla, © L'Illustration, LL/13581

Deschamps, 1941, 30 August, Phalaenopsis, laelio-cattleya, odontoglossum and cattleya, [L'Illustration (No 5138)], Magazine cover, Private collection of Nadia Valla, © L'Illustration, LL/13591