*Drools*.
(Um, I don't have a fetish for office supplies. Not at all. I just spent hours standing in front of the office supply section of the 5&10 where I once worked because it was, um, breezy there. That's right. And I worked in an office supply store for the same reason. That's my story, and I'm sticking to it.)
Oo, neat topic for a blog. My mother kept all sorts of stuff from the 1940s to the 1970s that I'm having fun going through - for example,
this calculator (the one on the left - and it still works). "Gives negative answers, too," the ad proudly proclaims.
My only suggestion would that you cross-post this to Flickr, where people are more likely to be searching for images of vintage office supplies.