Vintage mapping photos

Ordnance Survey2

Ordnance Survey1

Andy Switky of IDEO shares these great vintage photos of a situationist prank waypoint mapping project. Andy writes:

I spoke at a conference in Wuxi about a month ago and hung out with great folks from the London College of Communication. We got to talking about GPS for some reason, and one of them remembered a couple pictures he picked up at the Ordnance Survey, the UK mapping equivalent of the USGS. The pictures are from the early 1950s and presumably show "waypoints".

Link to image 1, Link to image 2 (Thanks, Lyn Jeffery!)