Up for auction is the Sonneveld Cubed Burr by Dic Sonneveld and made by Tom Lensch
Its cage is made from Blue Mahoe, Avodire, Prima Vera and the pieces are made of Granadillo
This is a three piece burr contained within a cube cage. It is very (very!) tough to dissasemble OR assemble. The solution requires moves not usually used in burr puzzles.
Designed by Dic Sonneveld aruond 1998/1999. This piece is in excellent condition and comes with its documentation and solution as pictured.
Additional pictures on request.