What is this close-up picture? (WotsThat: Postage stamp print dots)

Question

What object is shown in this zoomed-in close-up photo?

ChalcopyritQ · Accepted Answer

Postage stamp print dots. Postage stamps are printed using a halftone dot pattern that creates the illusion of continuous color and detail when viewed from a distance. This printing technique, developed in the 19th century, uses tiny dots of cyan, magenta, yellow, and black ink at precise angles to fool the human eye into seeing a full spectrum of colors.

Answer: Postage stamp print dots

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