Collotype picture postcard <Five Seasonal Themes Harukaoru Komadori and Akebono Azalea> Katsuji Koizumi, Izumi Tsuchioka

Size: 14.0 x 9.0cm Printing method: Glass plate (collotype multicolor printing)
Work information: Katsuji Koizumi, Izumi Tsuchioka, 1928, Kyoto City University of Arts Library

Katsuji Koizumi
Born in Tokyo from 1883 to 1945. Studied under Motoaki Yuki. He left behind Seimei, landscape paintings, and bird-and-flower paintings with elaborate depictions. His representative works are "Tousei" and "Sanko Asahun".
Izumi Tsuchioka
Born in Fukui Prefecture between 1891 and 1958. Studied under Somei Yuki and Katsuji Koizumi. Raises many birds and makes friends with bird lovers. Not only did he excel in bird-and-flower painting, but he was also active as a member of the Japan Bird Society.

○ What is Collotype?
Offset printing, a common printing method, expresses colors and shades with a density of small halftone dots, but collotype expresses continuous gradation, so it expresses fine details that are closer to the real thing than photographs. .