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Browse Items (4 total)

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Student using tools on a relief map, 1957

Student using tools on a relief map, 1957

A student uses tools on a relief map.
Student performing plane table surveying using an alidade, 1957

Student performing plane table surveying using an alidade, 1957

A student performs plane table surveying using an alidade on a topographic map.
Student using tools on a relief map, 1957

Student using tools on a relief map, 1957

A student uses tools on a relief map.
Student performing plane table surveying using an alidade, 1957

Student performing plane table surveying using an alidade, 1957

A student performs plane table surveying using an alidade on a topographic map.
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