The circuit board from an early first generation mobile phone with a steel ruler showing size

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Size: 5025px × 3350px
Photo credit: © David J. Green / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: ancient, basic, big, board, circuit, context, dated, dimension, early, enormous, generation, historical, history, huge, large, length, long, massive, measure, metal, mobile, phone, primitve, rule, ruler, size, steel, technology