Every man his own civil engineering and surveyor; a manual in two parts .. (1895)
Casterline, Smith. [from old catalog] · [Hartford City, Ind., E. S. Huffman, printer] · leaf 19
H9 9-8 -7- 6i 43 i-2i H8 … IK^ (11) the staff the broad way; fasten to this, in frontof the staff, by small screws, a piece of wood5 inches long*, 3 inches wide and a quarter ofan inch thick. Paint the upper half white andthe lower half black or red. Where the whitemeets the color will be for the line of sig-ht,or point of…
Surveying
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