evidence: 1943 War Photo Allegedly Shows Time Traveler Using A Cellphone [...] A 1940s wartime picture has sparked a debate online after some claimed it shows a man holding a mobile phone to his ear and may be evidence that time travel is real. [...] Another such photo was a picture taken on a beach in Cornwall, England, in September 1943, which shows a man in a brown suit looking at an item in his hands that appeared to resemble a mobile phone.