Montblanc, High Artistry, Hommage to Johannes Kepler, Pede Serpentarii, Ed. Limited No. 13/39, fountain pen in 750 white gold and blue lacquer covering the constellations of Serpentarius (Ophiuchus) and Sagittarius with the stars represented by brilliant-cut diamonds, clip set with a square-cut sapphire and a Montblanc-cut diamond, cap set with brilliant-cut diamonds and adorned with a triplet opal, 750 white gold beak set with a sapphire, signed, length 15.2 cm, certificate, box Very good condition. Brilliant-cut diamonds, 0.49 carat in total, G+ colour, VVS. Montblanc cut diamond, 0.114 carat, G+ colour, VVS. Princess-cut sapphire, 0.11 carat, round-cut sapphire, 0.015 carat. Opal, 5.65 carats. Please note that we do not guarantee the working order of the writing instruments, as they have not been tested.