File:Houghton scale1.jpg
Houghton_scale1.jpg (421 × 575 pixels, file size: 74 KB, MIME type: image/jpeg)
Summary[edit | edit source]
description of the houghton scale
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:45, 22 November 2017 | 421 × 575 (74 KB) | Simisola Ajeyalemi (talk | contribs) | description of the houghton scale |
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