Watch List notes:

Gaius (Caligula) 37-41AD, AR Denarius (struck in january 41AD) 17.4mm; 3.54g; 6h. Rome mint. A: [C• CAESAR• AVG• PON• M•] TR• POT IIII COS• IIII, Laureate head of Gaius right. R: S•P•Q•R | P• P | OB • C• S•, ain three lines within oak wreath. RIC I 7; RSC 23a. Almost Very Fine. Slighty off centered, marks on reverse. Very rare

Estimate: 2000 - 3500 USD