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Great Graduation Gift |
May 4, 2020 |
Reviewer:
L J U from Fresno, CA United States
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I bought this for my son who graduates with MS in geology. I had it engraved on case. It's so beautiful. And, what a wonderful tritium display in the dark. You can even see it start to glow before it is completely dark. With a half-life of 12.3 years, and the super brightness of the initial tritium loading, it should still be able to be read after more than 20 years.
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