The 48 Class

["Ben Staples" <98711576@feline.hawkesbury.uws.EDU.AU>]

I'm just asking if anybody knows when the 48 class was introduced in NSW.
I saw a 48 in the tele-movie "The Leaving of Liverpool" which was based in
the 1950's, and am wondering if the 48's were around then.

Thanks

Ben Staples