Bilby steel tower for triangulation (Special publication)
U.S. G.P.O, 1929-01-01. Softcover. Good. Item #188372
ISBN: B0008ASBSA
1940 Revised Edition. Brown paper wraps. Clean, has a good binding, no marks or notations. 27 pages. All illustrations included. (pmpt).
Price: $25.00
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