I got wind of this digital smorgasborg of Walter Burley Griffin and Marion Mahony Griffin images by way of Net Traveller. The National Library of Australia recently posted the Eric Milton Nicholls Collection in digital form, featuring 2500 drawings, lithographs, photographs, transparencies, postcards and negatives. There are some really interesting "Castlecrag" construction images, numerous drawings of the Griffin's Canberra plan and tons of other cool stuff. Check it out and enjoy!
Image copyright The National Library of Australia