Description
| GSA Photo Scale / Time Scale | |
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This handy field tool combines GSA’s popular photo scale and geologic time scale. |
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| On one side is the Photo Scale, calibrated boldly in centimeters (10) and U.S. inches (4). Includes a GSA seal for fine focus and an evaluation scale for granular material from 1 to 5 millimeters diameter. | |
| The reverse side includes the complete GSA Geologic Time Scale. Although legible, the printing on the time scale is small, identical to our wallet-sized time scale; you may need a hand lens to read it. | |
 Time Scale Side |
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Sturdy 20-mil X 2-1/2″ X 6-1/2″ tan vinyl printed in blue. |
Sold by the Each (1) Scale |
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