Chinese Gravity Puzzle Box 重力机关盒

Описание: During the 19th and early 20th centuries, villagers in southeastern Shanxi Province used wooden boxes to secure important documents and personal items. Rather than using a padlock to secure the boxes, ingenious box makers invented elegant ways of “locking” a box using only wood.
This box uses a gravity mechanism to secure its contents. The box is easily opened only if one knows the secret.

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