Maybe I'm a paper-sniffing library geek, but I was thrilled to find out that the NZETC has digitised all 29 issues of the 1940s-50s journal, the New Zealand Design Review.
It's transcribed, text-searchable, and has scans of each page, including the ads, some of which are to die for. Your modernist soul will delight in:
E Mervyn Taylor on letterhead design
Two houses by Ernst Plischke
Would a flat suit you?
A house in Stokes Valley - Bill Toomath