GERMANY. Isny. Maximilian I (1508-1519). Batten (1516).
Obv: MONE NOVA CIVITAS ISNE.
Crowned eagle facing, head left, wings spread.
Rev: GRA MAXIMILI RO REG.
Imperial eagle above large six-pointed star; five stars in angles.
Schulten 1382.
Condition: Very fine.
Weight: 3.30 g.
Diameter: 27 mm.
The coin was transformed into a pendant long time ago. 
Certificate of provenance and authenticity included .