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In common usage, a collection is any group of items that has one or more properties in common. For example, paintings from the same artist, or coins from Germany before 1900, see collecting and collectible.

In mathematics, collection is another term for set, or sometimes for class.

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Museums in England

... Havilland Aircraft Heritage Centre[?], also known as Mosquito Aircraft Museum[?] Verulamium Museum[?] Lancashire Astley Green Colliery Museum[?], ...

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