File:Four square cipher.png

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Four_square_cipher.png ‎(622 × 584 pixels, file size: 81 KB, MIME type: image/png)

a four-square cipher

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	01:24, 7 June 2025		622 × 584 (81 KB)	RABaker96 (talk \| contribs)

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Horizontal resolution	56.69 dpc
Vertical resolution	56.69 dpc