Chantry, associating a specific (higher in this case) Original Quality grade (OQ) with paired guns falls into the same buying trap as does trying to associate specific quality grade with a maker's name. Paired guns are usually in the higher OQ's just as most Purdey's are best work sidelock ejectors. But not all in both cases. The trick here is to educate yourself sufficiently to be able to identify the Original Quality grade independent of maker or paring or provenience. A best work gun is just that. A farmer grade gun is just that.

DDA