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1. Bob Ashlock

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Bob Ashlock of the engineering department of the Gilman Mine at work on the tool table. Two core sample containers can be seen to Mr. Ashlock's right.

2. John Coulthard

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John Coulthard of the engineering department at the Gilman Mine office. An engineering calculator is to his right. As calculations were performed, the top of the calculator "traveled" until final solutions were computed.
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