Museum Memory Match: A game of objects and recall

The printed sheet (p396) has 24 different artefact cards. Only 2 of them repeat, since the physical page is meant to be photocopied twice to build a full 24-pair deck. In the full deck, every printed card appears twice, exactly as a second photocopy would give you. Each level deals some of the printed cards, each twice; level 4 uses the whole sheet.