The Nº 4 “de Luxe” is AYA‘s most luxurious boxlock model. Known in the UK as the “Best Quality Boxlock“, it is AYA boxlock equivalent of their famous Model Nº 1 sidelock: , the action is scalloped where it meets the walnut stock, for the ultimate in boxlock elegance. The stock is of finely figured select walnut, hand-chequered, with a gold stock oval.