His cheeke-bones raw, and eie-pits hollow grew, / And brawney armes had lost their knowen might […].

[…] a certain vessel finely and subtilly made of the precious stone onychinus […]

Leather, badly tanned, is susceptible to deterioration from inherent vice induced by poor quality manufacturing.

While this debate was going on in Nature another was being conduct in Archaeometry. This was between Betancourt – and his old colleague Michael – and Warren, with the English archaeometrist M. J. Aitken holding the ring.