STANDARD - Survey Instrument Antique Center!

No. 1 c, Style p.
in. at edge of jrraduatio
Tachymeter.*
For size and particulars, as well as for extras, see pp. 15O-153.
No. 1 c, Style p. Graduations of horizontal and vertical circles on solid silver,
reading to minutes; 6-inch full vertical circle with two double opposite verniers read-
ing to minutes ; glass shades over verniers; 3|-inch striding level; gradienter attachment;
fixed stadia wires; etc. Standards leather finished.
Code Word, Buckwheat. Price as above, $296.OO
This instrument without a striding level. less, $20.00
*' " " double opposite verniers for vertical circle, but with a double
vernier between the legs of the standard as in No. Ic, page 154 . . less, $16.00
*The name 7^achynteter, or rapid measurer, has been applied for many years, in Europe to instruments of
this description. The characteristic of tachymetry is, that all the data required for the location of points are
rapidly determined by the instrument, by means of horizontal and vertical angles, and stadia measurements
of distance.