March 18, 1971
The AP Direct Feed
Both the AP Valve and the AP Direct Feed were sold originally to fit other manufacturers’ ‘horse collar’ style ABLJs (Adjustable Buoyancy Life Jackets). The Parkers supplement their business by opening a dive-shop with air-filling and cylinder test station. Visiting divers only recognise the hidden store by the “Divers Down” signal ‘A’ flag (if not the ‘P’ flag) painted at either end of the Parker Hardware shop-front