Stewart Coffin was the designer of the original Multi-Grain 275-A. This version, the 275-AS with a modified grain pattern was by Jerry Slocum.
Manufactured by Brian Young of Mr Puzzle Australia. Available for AU$66/-.
7cm x 7cm x 7cm.
Materials & Construction
Papua New Guinea Rosewood. Overall very good quality and finish with a nice snug fit.
This dissection puzzle was Jerry Slocum's IPP35 Exchange Puzzle.
The object is to take it apart and then re-assemble it. Even though its only 4 pieces, the taking apart was pretty tricky, given its symmetrical assembly. The pieces all fit very snugly and I had to pull and push a bit, here and there everywhere before something finally moved. It took me a bit of time to release the first piece.
Like all burr puzzles, I try to take apart the rest of the pieces slowly and memorizing the moves, and placing them in a systematic manner on the table, so that assembly wouldn't be such a pain later. Brian encourages puzzles who want a real challenge to scramble the pieces and "...go for a walk round the block or something..." and then try to fit the pieces back to its symmetrical pyramidal shape, the latter which of course I didn't.
Thankfully I managed to put the 4 pieces back together, and this is after some trial and error which got me a bit worried in the beginning. But I would imagine that if I had followed Brian's advice, the pieces would have looked so confusing later that I would not have been able to put it together correctly.
If it had come un-assembled, it would certainly have been very difficult indeed. Again quoting Brian from his site:
It is rated as 7/10 by Mr Puzzle but comes assembled so the difficulty quotient is lower.