I stumbled on this mirror today and have no idea what it is worth. the only info I can find on it is from Wikipedia about the name speedtest gasoline was acquired by BP in 1971
http://en.wikipedia.org/wiki/Supertest_Petroleum
and the company that made the mirror is called Canadian Pitburgh industries that was opened in 1949. so Im dateing this mirror between 1949 and 1971 but not sure. Any ideas what its worth and has anyone seen one like it ?