Cased George IV Altazimuth Theodolite by Alexander Adie of Edinburgh RB Bate William died in 1843 leaving

William died in 1843 leaving a substantial business to his sons

“John Lilley & Son

and attain greater accuracy

having not taken enough notice of the falling barometer

electrometers

Cased George IV Altazimuth Theodolite by Alexander Adie of Edinburgh RB Bate William died in 1843 leavingFor sale, a cased George IV altazimuth theodolite by Alexander Adie of Edinburgh. This rare example is comprised of a horizontal five inch divided circle which is coarse adjusted by hand and then finely adjusted by means of a knurled brass knob attached to top. The centre contains an expertly engraved and silvered compass with a small brass cam to the side of the case, to hold or release the movement. Two sides of the outer edge of the base are also