Garcia is holding a 4-by-6-inch photo of an ivory-faced brunette wearing
a lacy, white, off-the-shoulders top. She has red lipstick and silver
earrings, and the photo appears to have been taken sometime in the 1970s
or '80s.... For many years, this "Shirley" card -- named for the original
model, who was an employee of Kodak -- was used by photo labs to
calibrate skin tones, shadows and light during the printing process....
For decades, Kodak's Shirley cards featured only white models.... In
1978, the filmmaker Jean-Luc
Godard famously refused to use Kodak film
to shoot in Mozambique because he declared the film was racist.
-- Mandalit del Barco.
"How Kodak's Shirley Cards Set Photography's Skin-Tone Standard"
NPR. (November 13, 2014).
http://www.npr.org/2014/11/13/363517842/for-decades-kodak-s-shirley-cards-set-photography-s-skin-tone-standard