I will join other commentators in saying that this is super neat. I am surprised that there's such clear and methodical street-level records of basically every

I will join other commentators in saying that this is super neat. I am surprised that there's such clear and methodical street-level records of basically every address in such a large area from this point in history. I shouldn't be so surprised though, it's not like humans were any less intelligent, organised, and resourceful. I guess it's just the sheer effort needed by the teams and the required assets (film, cameras, development, filing, etc) to pull this off. You can see that some blocks were photographed in summer, some in winter, and some in between, so it was clearly a large exercise. Also, the fact these records still exist and weren't destroyed by accident or oversight over the past 80 years is fortunate. I wonder if now the photos are digitised with GPS coordinates, given current photo-stitching technology, whether it would be possible to process these and stitch together into a more seamless virtual walkthrough of the streets? Sure there'd be gaps, but it would be cool to be able to put myself at ground level and meander among the streets of days gone by...