Brian’s Big Baffling Bolt (BBBB) [Brian Young/Mr. Puzzle]

Details of the puzzle:

The goal is to find the 30th-anniversary plaque with its pearl.

Most bolt puzzles have just one or two moves but Brian wanted to make a full-blown sequential discovery puzzle out of a bolt. In the end, he had to hand-make the bolt too! To celebrate 30 years of puzzle making Brian included a few well-disguised hints of puzzles past. But don’t think that means you’ll solve this one easily.

This approach is a little unusual, Brian normally would like to put something radically new into every puzzle that he releases. But this one is actually more like a greatest hits of a lot of his designs to celebrate the last 30 years. 
Even so, you might not easily recognise some of the moves. The puzzle has been checked by some pretty good puzzle solvers around the world and some of them had a bit of trouble with different parts of the puzzle, probably because they’ve never seen the trick in the original puzzle made many years ago. 

Basic Rules:
You will NOT need to use any hitting, spinning, sudden movements, or jarring. Nothing is done up tight, and there is definitely no need for any force.

BBBB is made here at Mr Puzzle. There is no donor bolt.  Brian is machining it all himself from scratch, including the bolt, from hexagonal and round brass stock. There are pins and magnets inside. 
Base:
– Most of the puzzles have a base made from Papua New Guinean Ebony.  These ebony puzzles vary from streaky to quite uniform colour.
– There are just 28 puzzles that will have a Queensland Walnut wood base.  The photo below is representative of most of them.  (Queensland Walnut was the wood used to make Whilemmina Wombat back in 2008; because Brian is retiring he’s using up some old wood stock).
– Some of the uniform coloured PNG Ebony look very similar to the walnut.

Size: Bolt – 65mm long Hex diameteer 30mm Base – 110mm x 50mm x 40mm