The Einstein Collection Lock Puzzle

Einstein's Freedom Lock Puzzle:

Can you solve this clever Lock Puzzle? Using the key move the wooden pieces around so that the lock becomes un-done. Then fasten it back into it's original position. Think you have it mastered? Then try it out on your friends and family.

Einstein believed that playing instruments, exploring nature and indeed solving puzzles, were just as valid expressions of intellect as memorising lines from a textbook.