Coin put in the post, picked up (4)

I believe the answer is:

cent

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'coin' is the definition.
(cent is a kind of coin)

I don't understand the remainder of the clue.

(Other definitions for cent that I've seen before include "Small change" , "One-hundredth of a currency" , "One hundredth of a euro" , "One hundreth of a dollar" , "change from Colorado!" .)

I've seen this clue in The Telegraph.

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