For other scans from maths books you can go here, here, here & here.
A new Instagram account which posts the tops of Japanese water towers. Yes please!
An address book swimming pool by Jorge Macchi. Incredible! Links in pic.
A snip at $18,000. Via
The teletext museum.
Even before these have been folded to create animals they are beautiful! All those lines, folds & pastel shades. More here.
Classic typewriters, to hang on your wall.
This instagram account is collecting the signage of Tehran.