©
signal mirror: 1940s USAF B-1 Signal Mirror Front
©
signal mirror: 1940s B-1 Signal Mirror Back
©
signal mirror: B-1 Signal Mirror Back
©
signal mirror: LOF B-1 Signal Mirror Front
©
signal mirror: LOF B-1 Signal Mirror Back
©
signal mirror: B-1 and Mark 3 Signal Mirrors
©
signal mirror: Signal Mirror Sight Picture