Originally uploaded 7 April 2006 with a "Work has been released into PD by the copyright holder" rationale.
Changed March 2009 to an "Austn pre-1955 rationale" Sticks66 23:45, 27 March 2009 (UTC)
The information and photographs on this website would strongly support the view that it was taken pre-1955. There is a motorcycle track evident in the shot. The link below asserts that a concrete track was scrapped in 1929 and replaced with a dirt track. The dirt track was closed in 1955 after the death of eleven riders.