1945. A caption on the back of the photo reads:
LOVE IN TECHNICOLOR BLOOM
Merle Oberon and Turham Bey ready themselves for the shooting of an ardent love scene in Walter Wanger’s Technicolor “Night In Paradise.” William H. Greene, director of color photography, gives a last minute check-up on the Universal production. A moment later Turham’s first screen kiss was filmed.
William Howard Greene, a pioneer in colour cinematography, was nominated for an Oscar seven times, including five years in a row from 1940 to 1944. All of his nominations were for his work in colour, in the days when colour and black-and-white cinematography were different categories at the Academy Awards. There’s more information about him at IMDb.