![](http://www.alamy.com/thumbs/6/7289E5DE-DAE4-4DA0-A1E3-2303F017A3CE/A8BW44.jpg)
Keyboard of scientific calculator
Size: 3413px × 5120px
Photo credit: © Wm. Baker / GhostWorx Images / Alamy / Afripics
License: Licensed
Model Released: No
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