A forgery of a Georg Hartmann compendium with two wooden leaves. Horizontal sundial with hinged gnomon for latitude 50° and compass on first leaf. Blue/silver needle, type 2. Silver astrolabe on second leaf. Labeled in Latin and German. Fitted leather, velvet and brass case.
Material
"GEORGIVS HARTMAN NOREMBERGE/FACIEBAT ANNO 1558" on first and second leaves. "GH 1558" on second leaf.