ISAAC CARVER, 1689
细节
AN ENGLISH IVORY SLIDE RULE
ISAAC CARVER, 1689
signed ISAAC CARVER fecit 1689, with scales on all four sides of the body and slides: Inch, Foot, A, Seg Ly, Seg St, Inches, Spheroid, Parabola, Conoid, Square, Root, B, Numb, Root, Cube.
12½in. (31.5cm.) long
ISAAC CARVER, 1689
signed ISAAC CARVER fecit 1689, with scales on all four sides of the body and slides: Inch, Foot, A, Seg Ly, Seg St, Inches, Spheroid, Parabola, Conoid, Square, Root, B, Numb, Root, Cube.
12½in. (31.5cm.) long
注意事项
No VAT will be charged on the hammer price, but VAT at 15% will be added to the buyer's premium which is invoiced on a VAT inclusive basis.
Prospective purchasers are advised that several countries prohibit the importation of property containing materials from endangered species, including but not limited to coral, ivory and tortoiseshell. Accordingly, prospective purchasers should familiarize themselves with relevant customs regulations prior to bidding if they intend to import this lot into another country.