Without giving away any spoilers a telegram machine plays a part in The Magnificent Three story… Click HERE to see a postcard video about this amazing museum in Porthcurno, or better still go and see for yourself! To celebrate our partnership with Telegraph Museum we are opening The Magnifcent Three there on Sunday 7 August, you can enjoy free entry into the museum from 6pm, before settling down to see the show which starts at 7:30pm – details HERE