What is this close-up picture? (WotsThat: Piano key ivory)

Question

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

PeatBogger · Accepted Answer

Piano key ivory. Piano key ivory hasn't actually come from elephants since the 1980s due to international bans on ivory trade. Modern piano keys are made from plastic or sustainably sourced materials, but vintage pianos still feature the real thing, making them prized by collectors and musicians alike.

Answer: Piano key ivory

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