This isn't a toy bus but a picture of ex Doncaster Corporation 177, 477HDT, a 1963 Leyland PD3/4 with Roe H40/32F body, taken in Alaska
It has recently been bought by Chris Wilhelm in Ketchikan, Alaska who'd appreciate any more information (or photos) - his email address is citytour@kpunet.net

Photo taken by Chris Wilhelm, 2002, Alaska