retro round slide rule
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
retro round slide rule |
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| navigate by keyword : accuracy acute addition angle antique backgrounds calculating calculus circle computing corroded degree direction division equipment fashioned glass hand indicator instrument logarithm mathematic measurement measuring motion multiplication old physic point pointer reflection retro roll rule scale science scratching shape shine slide sparse subtraction textured tools turn twirl twist unit vanishing weathered |
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| Retro round slide-rule with fine scratched glass |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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