Manual of modern surveying instruments and their uses .. (1893)
Lietz, firm, math. instr. makers, San Francisco. (1893. The A. Lietz company) [from old catalog] · [San Francisco] The Company · leaf 204
Small Pocket Compasses, with or without sights, ranging in price from $1 00 to $8 00 No..48. Miners Compass, or Dipping Needle. An instrument for determin-ing the location of iron by means of a magnetic needle. Price. .. .$14 00 No. 49. Prospectors Pocket Balance, for making a field analysis of… … No. 50. No. 50. Locks Hand Level, with prism $8 00 No. 51. Locks Hand Level, with plated mirror 5 00 No. 52. Abneys Kenecting Level or Pocket Altimeter, improved, with divided arc to show gradients, in morocco case, each 15 00 No. 53. Abneys Eeflecting Level or Pocket Altimeter, with bar needle,…
Surveying
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