Mary Hallock Greenewalt photographic portrait with light-playing console
Permanent ID:
11777
Date:
circa 1922
Inscription:
Photo of Mrs. Mary Hallock Greenewalt (the head arrangement is fancy + only used for this photo) seated at her second development of light-color play console instrument. The color filters are of the true primary colors (see correspondence with the Eastman-Kodak Co.) and with the scale of at least visible microments [?] made through the rheostat (see patent 1357773 makes for the first time a definite measure definite recordability for color shade and color tint. The Arabic name, it will be seen is carried on the side of the instrument.
(Verso)
Format:
Photographs
Dimensions:
Width: 20 cm, Height: 25.5 cm (image)
