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Scientific calculator with pi number on a display and reading glasses against math text book with integral tables. These are real devices, not props, showing some wear and dust.
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Image Number: 2640000
Description:
Scientific calculator with pi number on a display and reading glasses against math text book with integral tables. These are real devices, not props, showing some wear and dust.
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Image Type: Stock Photo
Photographer:
Marek Uliasz From United States
Member since December 2007
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