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Crack the Plum Lock Code: Solution in 7 illustr...
Introduction You have in your hands a little gem of Chinese mechanics: the Plum Lock. This wooden puzzle, with its simple appearance, contains a disconcerting complexity that has already turned...
Crack the Plum Lock Code: Solution in 7 illustr...
Introduction You have in your hands a little gem of Chinese mechanics: the Plum Lock. This wooden puzzle, with its simple appearance, contains a disconcerting complexity that has already turned...