1908 Sears Catalog ad: Drainage Level

. Monday, July 29, 2013

Drainage Level, $23.90. No. 20K3950 This is a thoroughly practical accurately constructed level, designed especially for the use of farmers and ditchers. As shown in the illustration, this level is provided with tripod and leveling head by means of which the instrument can be perfectly leveled up and kept so when revolved. The telescope is a powerful high grade achromatic instrument 12 inches long and made with fixed crosshairs inside which cannot get out of adjustment. With this telescope a leveling rod can be read a distance of 500 feet. The telescope carries a carefully ground spirit level adjustable by two nuts and so sensitive that a difference of 1/8 of an inch in 100 feet can be easily determined. The entire instrument is constructed of bronze metal finely finished with best workmanship throughout. Shipping weight 12 pounds. Price, complete with tripod and box $23.90.

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