Van Neck adjustable lens key, made by Van Neck and Co. 32 Grays Road, London. Divider type key for removing rear elements of combination lens in cardboard box, sold by Charles W. Coe, 52 Queen Victoria Street, London. Van Neck adjustable lens key
Van Neck adjustable lens key, made by Van Neck and Co. 32 Grays Road, London. Divider type key for removing rear elements of combination lens in cardboard box, sold by Charles W. Coe, 52 Queen Victoria Street, London. With instruction sheet. Van Neck adjustable lens key
