Pinnacle graphometer Compass with eight-way compass rose, north indicated by a fleur-de-lys Alidade with two pinnules and graphometer plate with floral engravings Swivel foot mounted on the fixed plate Late 17th or early 18th century W. 23 cm - H. 10.8 cm TO Signed "Buterfield" "Paris" 1635-1724 Complete with ball joint Unusual signature appearing apocryphal Wear from use Expert: Thierry OHANNESSIAN