Very rare R3 silver denarius of Emperor Pertinax 193 weight 2.9 grams diameter 18 mm

  
Very rare R3 silver denarius Emperor Pertinax 193: weight: 2.9 gr diameter at widest: 18 mm. Laureate head of Pertinax to the right. Providentia (Providence) standing draped to the left, reaching out the right hand, above a star.