A small box of Johnson Universal Indicator test paper books as used in a UK secondary/high school.

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Size: 2819px × 4229px
Location: London, UK
Photo credit: © Maurice Savage / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1-14, books, box, british, education, educational, england, high, indicator, johnson, pads, paper, papers, ph, ph1-14, school, science, secondary, small, table, test, uk, universal