Ivory diptych with metal casing. Wind rose with 32 numbered points. Abbreviated Latin names for cardinal points. German names for 15 points (north omitted). Hole to view compass needle. Pivoting arm missing. Brass bead plum-bob. 1 of 2 latch hooks missing. Crystal missing.
Inscription/Sig.
"T (sideways punchmark of crowned snake) D" on 1b.
