Identifying the source of these wentworth model dwellings pics?

[MrTwibbs]

Was going through some old files on my PC and found a couple which I didn't recognize. Although I'm sure they are well known. My question is who is the source and when they were taken and the photographer? Anyone care to help enlighten me please?

[MrTwibbs]

this one shows the stair case

[PaulB]

this one shows the stair case

I seem to recall that this one is Stewart Evans's copyright.