By The Chas Fischer Spring Co. Excellent frames with only light wear to the plating. These have the more streamlined vents and are stamped 'AN6530' on the centre hinge. Fitted with an excellent set of clear American Optical glass lenses. The one piece rubber face cushion is excellent/supple and the backing chamois very clean. Very good grey strap retaining excellent elasticity. A superb pair. Stock code G22919.