Alidades, Plane Tables, Tripods and Accessories

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3768 Compass, for plane table,  needle length 4 inches, base size 1 inch X 6 inches.
. PHOTO   $50.00
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3769 Alidade, Hilger & Watts, Microptic, Model 6200-A100,  Glass optically read one minute
  vertical circle, Horizontal reduction scale and vertical reduction scale.
15X Telescope, vertical and horizontal 1:100 stadia, with telescope vial. ca 1970. With sun 
shade.  No compass.   In dovetailed mahogany box painted red.
EXCELLENT CONDITION.  PHOTO   PHOTO   PHOTO   PHOTO   PHOTO      $800.00
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3998 Tripod head, Heller & Brightley, for large plane table. In box. Ca 1880.
RARE!!!  Attaches to 4 screw leveling base that is missing and would be
in a separate box.     PHOTO    500.00
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4006 Alidade, Buff & Buff, set of shop samples or prototype for gimbaled articulated
  "Alidade or Indicator for Ships' Compasses", This unmarked set came from Buff & Buff
made of brass, in wood box.  ca. 1902PHOTO  a PDF file of the Patent  $500.00
.  Patented by W. S. Burgess June 23, 1903, A copy of which is included.
  PHOTO   PHOTO   PHOTO   PHOTO   PHOTO   PHOTO    
  Written in pencil on the box lid and very difficult to see and read is;
  "Shop Samples Burgess Ailrcam Alidade Property of Buff & Buff Mfg. Co.
  Aibicaus (?) Frank B. Dow Jr."
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