These may be photographs, half-tones, like the illustrations in this book, or engravings.
There were no half-tones, no poverty—in sight, at least; no litter.
It is profusely illustrated with half-tones and line engravings.
I myself watched the slow decline of luxury by half-tones and semi-tones!
"You're certainly much more in half-tones," said Mr. Direck.
There were ...