‘concealing’ historical pictures (exact matches)

Incas hiding their gold from the Spanish Conquistadors
Incas hiding their gold from the Spanish Conquistadors
Blue Jays in Winter, study for book Concealing Colouration in the Animal Kingdom
Blue Jays in Winter, study for book Concealing Colouration in the Animal Kingdom
White Birch Leaf Edge Caterpillar, study for book Concealing Colouration in the Animal Kingdom
White Birch Leaf Edge Caterpillar, study for book Concealing Colouration in the Animal Kingdom
A day in the life of Tsar Alexander I of Russia, in London, 1814
A day in the life of Tsar Alexander I of Russia, in London, 1814
Larger Spotted Beach Leaf Edge Caterpillar, study for book Concealing Colouration in the Animal Kingdom
Larger Spotted Beach Leaf Edge Caterpillar, study for book Concealing Colouration in the Animal Kingdom
Fig. X "North American Indians…", study folder for book Concealing Colouration in the Animal Kingdom
Fig. X "North American Indians…", study folder for book Concealing Colouration in the Animal Kingdom
Flamingoes, study folder for book Concealing Colouration in the Animal Kingdom
Flamingoes, study folder for book Concealing Colouration in the Animal Kingdom
Zebras, study folder for book Concealing Colouration in the Animal Kingdom
Zebras, study folder for book Concealing Colouration in the Animal Kingdom