Guards Whistles comprising Midland Railway Acme Thunderer Button Whistle (one side) with chain; GWR Acme Thunderer Button Whistle (one side) with chain; LMS Acme Thunderer Button Whistle (one side); GWR Acme Thunderer No 18878; GWR The Thunderer with small chain; BR black plastic Acme. (6 items)