File:Aperture card.JPG
From Infogalactic: the planetary knowledge core
Size of this preview: 800 × 354 pixels. Other resolutions: 320 × 142 pixels | 1,920 × 849 pixels.
Original file (1,920 × 849 pixels, file size: 162 KB, MIME type: image/jpeg)
Summary
A backlit aperture card showing hollerith holes and the microform image
Licensing
Lua error in package.lua at line 80: module 'strict' not found.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:44, 4 January 2017 | | 1,920 × 849 (162 KB) | 127.0.0.1 (talk) | <p>A backlit aperture card showing hollerith holes and the microform image </p> |
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