Mater consists of cast ring soldered to hammered back plate. Throne cast separately, soldered-brim. Carries usual 2 rosettes adapted by Hartman. Ring and ball present. Shackle may be replacement. Rete is a typical Hartman type. 27 stars shown. Three tympans for 39°, 42°, 45°, 48°, 51°, 54°. Alidade has folding sights with double pin holes.
Materiaal
"Georgivs Hartman/Norenberge Faciebat/Anno MDXXXII" on back
