Beam compass by George Adams
1775-1795
Combination dividers
1772-1795
Beam compass
1870-1876
Tubular beam compasses
1876
Beam compasses
1876
Beam compasses
1876
Brass beam compass in walnut case; divided to 13 inches
1838-1901
Tubular beam compasses - 3 draw; 12" long when closed
1876
Brass beam compass, square section beam, 18-inch scale
Beam compass
Rackwork beam dividers, brass, 24in (61cm) long
Six portable beam heads: 2 plain points
1876
Beam compasses
1876
Beam compasses
1876
Beam compasses in fitted wooden case
Beam compasses by Ed. Troughton (1753-1835)
Beam compass no. 1173A by Houghton-Butcher Manufacturing Co. Ltd.
1918