Famous for its yellow and (fluorescent) orange concentric rings, Donald Deskey’s Tide laundry detergent package sometimes had to be reproduced in black and white.
Newspaper advertising was seldom full color in the early 1950s. That’s where black and white line art came in. On left: a “stippled” example from Tide’s 1952 trademark document. On right: a “line engraving” style example from a 1951 grocery store ad.
(Tide trademark registration, after the fold…)
See also: Tide at the Dawn of Day-Glo