Retro Educational Technology

I'm involved in another blog which is one of may favorities, its about my collection of old educational technology.

I've been collecting for awhile. It started whne I brought the typewrite that I used in highschool into the office. I wondered at the time if it would useful for envelopes or something. As it turns out, its a huge conversation piece. Most of my colleagues had never used a real manual typewriter.  Just to complete blow their minds, I bought some carbon paper which turns out to be another discovery for al of them. 

Since then, the collection has grown, check it out. Tell your friends!
A few of the items featured so far:

• Slide rules
• typewriters
• film strip projectors
• record players

BTW, I'm looking for a mimeograph mahcine (circa 1960s or 760s) to compete the collection.  Can you help me get a lead on one?