Caption-"Holiday-makers arriving and departing from Natural Jetty, SS Zephyr and yachts moored at jetty, horse-drawn tram, overcrowded motor car, horses and buggies. The Ford motor car, number plate 810, was registered to Rose Ann Keough - licensee of Rottnest Island Hostel, where Izzy Orloff and his friends stayed while holidaying on Rottnest Island, Easter 1922."
I posted a photo from close to this location a while ago- can be seen here-
http://www.mtfca.com/discus/messages/257047/295652.html?1339753788
So now we have a little more information about that car.
Dane.