These are no longer available and very sought after. More or less identical to the James Bond Casino Royale 2720-S. Great condition. No marks on either frame or glass. Both lenses have the 'Persol P' [Polarised] inscription. and have 4 'Meflecto' rods in each of the arms [explained here http://www.persol.com/mexico/technology/...ristics/comfort]
and as with all Persol glasses, are completely hand made in Italy. £90 delivered PPG
Official size markings: 55-16 (55mm lens width, 16mm bridge width)