CENTAUR 'Blue Funnel Line' Passenger/Cargo Ship - 25 x 20cm BLACK & WHITE PHOTO
The photo is in excellent condition.
It weighs just 14g and measures 25 x 20cm.

HISTORY MINUTE
There are two distinct vessels named Centaur associated with the Blue Funnel Line
(Ocean Steamship Company) based on Wikipedia and related shipping history: 
a 1924-built motor ship that operated on the Australia–Singapore route
and a 1964-built passenger/cargo ship
The 1964 Centaur was a popular, albeit expensive, vessel known as the last official
liner to leave Australian shores before being sold in 1985.
MS Centaur (1964–2006)