Red tulip, Samoa, ca. 1927

Leendert Blok :: Close up of a red tulip,Tulipa Samoa. Autochrome. Text accompaning picture: Samoa Lil. Flow.Tulip S.A de Graaff en & Konijnenburg. [Nederland, omstreeks 1927]. | src Nationaal Archief ~ Collectie Spaarnestad

Irises, Arthemius, 1927-1930

Leendert Blok (1895-1986) :: Iris, Arthemius, ca. 1927. Autochrome. | src Box Galerie
Leendert Blok :: Flowers, Flower bulbs. Irises, ca. 1930. Example of early color photography using the Autochrome process. | src Nationaal Archief ~ Collectie Spaarnestad

Four Tulips (Autochrome), ca. 1930

Leendert Blok :: Floriculture, tulips, flowers, bulbs. Four variegated tulips. Example of early color photography using the Autochrome process. [The Netherlands, about 1930].
Blok applied this first practical color process to photograph flowers for Dutch growers in the Bollenstreek. Using orange, violet and green colored very fine potato starch granules which act as a filter and which are applied to a black and white positive on glass, an image is created that can be viewed as a color slide. | src Nationaal Archief ~ Collectie Spaarnestad and Flow Magazine