It's a bit late to be commenting on this post, I think, but nonetheless I wanted to share with you something that I think you'll like. It's called Shorpy, and it's an ever-growing collection of high resolution scans of archival photos, generally from around 1900 to 1950 but going back as far as the American Civil War and as far forward as the nineteen eighties (though rarely over the sixties, it seems).

In direct relation to your post here, I've got the link to Shorpy's gallery of Kodachromes, where you'll likely see some things from Flickr and maybe something new, too: Shorpy Kodachromes

Of course, they have *far* more black and whites than color, and even if you're not really for that sort of thing (which seems unlikely), I suggest you check them out. Shorpy gets updated most every day, so there's almost always something new. Hope you like it.

(also hope you didn't know about it yet!)