Natural blue pigment posters & prints

Woad Mill at Parson Drove, c.1900 Alfred Balding

Iceberg Anonymous

The Sense of Sight, 1898 Annie Louisa Swynnerton

Equally fascinating, 2003 Mark Adlington

Mountains and Loch, 2015 Janet McKenzie

Common Blue Bird John James Audubon

An imaginary flower with a blue base, 2003 Hiroyuki Izutsu

The Bluefish, Pomatomus saltatrix J. L. Petrie

Centaurea Cyanus Blue-Bottle Anonymous

Havasu Falls Anonymous

Ice Sheet Anonymous

Blue Gemstones Anonymous

France, Arial view of the mont blanc Assaf Frank

Agave Plants on the Island of Maui Anonymous

Baia de Tossa Anonymous

Country folk, 2018 Lisa Graa Jensen

Page 56. Melephahu Cyanops Unknown artist

Sago Palm Anonymous

Sisters Peak Anonymous

Page 44. Goodenia ramosissima, c.1803-06 John William Lewin

Pine Trees, Mountains, and Lakes in Blue Anonymous

Arc of the Diver, 2016 Mark Adlington

Agave Plants with lone Plumeria bloom on the Island of Maui Anonymous

Melting Iceberg Near Hans Glacier in Hornsund Sound Anonymous

U-Chu Book Illustration of a Light Blue Iris Anonymous

Page 37. Wahlenbergia gracilis, c.1803-06 John William Lewin

Blue-bird of Paradise, 1909 Edward Adrian Wilson

Blue Basin Anonymous

Cabana at the Beach Anonymous

Aerial view of the Great Barrier Reef, Queensland, Australia Anonymous

Fresh Field Lou Wall

Anagallis Arvensis Var. Caerulea Blue Pimpernel Anonymous

Near Gloucester Maurice Brazil Prendergast

Iris pumila floribus cæruleis, Iris naine à fleurs bleus Pierre Joseph Redouté

Mountain Reflected in Lake Anonymous

Salix Alba, Var. Coerulea; Blue Willow Anonymous