From The Public Domain Review, Ogawa Kazumasa’s Hand-Coloured Photographs of Flowers.
The stunning floral images featured here are the work of Ogawa Kazumasa, a Japanese photographer, printer, and publisher known for his pioneering work in photomechanical printing and photography in the Meiji era.
A reprinted book containing these images by Kazumasa is available as are prints. (via @john_overholt)