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IBM26 WirePlate TieClip
 

 

 

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Source page: http://commons.wikimedia.org/wiki/File:IBM26_WirePlate_TieClip.jpg

Summary

Description
English:
  As long as I can remember, my father had this tie clip.  I believed that it was his name in some punchcard format.  Not long after he passed away, in December of 2008, this tie clip came into my possession, and I noticed that there were a lot more bits on it than it would take to encode anyone's name.  It didn't take much research for me to realize that it didn't match any known punchcard format that I could find.  eventually, I found Wikipedia:File:IBM-026_wireplate.jpg on the wikipedia:Keypunch article— a picture of an almost-identical metal plate, with the same binary pattern.
as it happens, this plate is apparently a part from a 1940s- or 1950s-vintage IBM-26 keypunch machine, a rather primitive Read Only Memory (ROM) containing data for printing characters in a 5×7 dot matrix.

  I'm uploading this image, now, because I think that the Wikipedia:Keypunch article could use a better-detailed image of this plate.  The extant image is more “natural” showing the part more in its original form, without it having been made into a piece of jewelry, but my image gives a better view of the actual binary pattern stored on it.

  I've rotated my image to match the orientation of Wikipedia:File:IBM-026_wireplate.jpg.
Date 1 October 2010(2010-10-01)
Source Own work
Author Bob Blaylock

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EXIF data:
File name ibm26_wireplate_tieclip.jpg
Size, bytes 433746
Mime type image/jpeg
Orientation of image 1
Image resolution in width direction 1600/1
Image resolution in height direction 1600/1
Unit of X and Y resolution 2
Color space information 65535
Exif image width 1330
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Software used Adobe Photoshop 7.0
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