Thanks for the input to date folks.

As far as I can see it's not the anniversary model (or any other special edition) as it's in a cardboard box with a blue lid, not cased. And I checked the receipt, it definitely says £235. However, having just looked up what other people are charging for them whilst I don't really know it's worth, I'll tell him that he'd maybe get £100 plus post if he was lucky.

Thanks, Vic Thompson.