Photo: Monthly Notices of the Royal Astronomical Society, Vol.92, No.7, pp.694-707 (1932).
The photo  shows Herman Hollerith's Type 001 manual (non-electric) numeric key punch. The nameplate indicates it was manufactured by The Tabulating Machine Co., Hollerith's company that was to become IBM. The 1901 patent diagram  is shown at left (CLICK image to magnify). Also see Baehne  Plate 3.
|In this uncredited photo found on the Web, we see the Pantographic Card Punch and the Type 001 Key Punch side by side, in what is probably a reenactment of the 1890 and 1900 US Census recording techniques. The key punch was approximately twice as fast.|
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Most recent update: Tue Sep 25 15:24:18 2007