Hi everyone - thanks for all the words of welcome.
One enquiry was about the pivot details.
The pivots are made from African blackwood which I turn myself - I finish them at 4 mm which is as large as I dare go bearing in mind that the lid is 10mm thick - just enough room for some error in drilling. I use the skew for turning the pivots - this leaves a burnished finish that needs no sanding. I make lengths of about 2 1/2 inches long - any longer the timber flexes under the pressure from the skew and I can't control the diameter.
The back of the lid, at the top, is rounded on the router table. I use a 9mm roundover bit - this give clearance for the lid to open without jamming against the back of the box. I drill the hole for the pivot 9mm forward from the back edge of the lid and it just allows the lid to open beyond the 90 degrees. I arrived at this on my third box using this type of lid after some trial and error on boxes 1 and 2.
Hope the above helps - if you need further details let me know and I'll try to help.