A unique ball puzzle. Sold in small quantities online.

• Inventor: John D Harris, CA.
• Mechanism: Unique
• Patents: US5645278
• Producer: Marketed online by JD Harris.
• Year: 2001
• Original Price: $14.99 USD
• Current Price: $172.98 USD

A very interesting and unusual design. Six curved sections are joined with pivots end-to-end to form a continuous loop.

Each section contains two rows of three coloured beads. The sections can be twisted to align in different ways.

There are six distinct alignments where the outer 18 beads can be cycled through the sections.

The puzzle is solved when all the beads are in the correspondingly coloured halves of the sections.

The puzzle was only ever sold online, marketed directly by the inventor through the now defunct site www.astrolabacus.com and through eBay.

A well thought out, solidly constructed, challenging and rare puzzle. The movement is incredibly fluid for something so solid.
Diameter: 72mm
Weight: 144gr

Price Tracking Data

DISCLAIMER: The following table contains user-generated content. This information is collected to serve as a rough guideline and is certainly not complete and may not even be accurate. This information is filtered and carefully moderated, but incorrect information will inevitably find its way into the system. Always use your own judgement when buying or selling an item.

	Sale Date	Price (USD)	Sale Type	Condition	Package Condition	Notes	Contributors	Edit
	May 27 2005	$63.81	eBay Auction	Mint	Mint	used Buy It Now price	Darren Grewe
	May 22 2005	$64.10	eBay Auction	Mint	Mint	Used Buy It Now Price	Darren Grewe
	May 21 2005	$64.10	eBay Auction	Mint	Mint	used buy it now price	Darren Grewe
	May 13 2005	$64.27	eBay Auction	Mint	Mint	Used Buy It Now Price	Darren Grewe
	Jun 1 2005	$63.85	eBay Auction	Mint	Mint	Used Buy It Now Price	Darren Grewe
	May 17 2005	$64.27	eBay Auction	Mint	Mint	Used Buy It Now Price	Darren Grewe
	May 20 2005	$64.27	eBay Auction	Mint	Mint	Used Buy It Now	Darren Grewe
	May 7 2009	$550.00	eBay Auction	Mint	Good	BIN	Ben
	May 4 2009	$665.00	eBay Auction	Mint	Good	None	Ben
	Jan 10 2005	$66.17	eBay Auction	Mint	Unknown	None	Unknown
= The sum of all currently check-marked rows.
= The average of all currently check-marked rows.

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