Roman Bronze Surveyors Compass and Plumb Bob
An ancient Roman bronze hinged surveyor's compass and conical bronze plumb bob.
Ca. 2nd century BC - 2nd century AD.
Confer: J. P. Adam, Roman Building, Material and Techniques, (1994), p. 43; Naples Museum, inv. 76686 (compass), illustrated in, Pompeii, AD 79, (Boston, 1978), pp. 202-3.
Formerly in an English private collection.