Mars in 1938

I saw today on someone else's blog (Bernalwood) that a full set of 1938 aerial photos of SF have been put online, so of course I promptly looked up Mars.

Here it is in a modern satellite photo:


First, I have to say that the resolution on the 1938 photos are astounding. You can download the photos or use the Google Earth interface, if you want to poke around 1938 SF yourself: http://www.davidrumsey.com/view/google-earth-browser#san-francisco-1938

Second, this photo shows that the back extensions are way, way older than I had thought. WOW. No wonder the floors slope!