The cursus publicus, a well-organized service for the transportation of passengers, goods and mail in the Roman Empire
Printed in sheets of 8 (3x3 with central label)
发行数量: 60000 (in 7500 full panes of 8 stamps + label) + 20000 (in souvenir sheets) = 80000 齿孔: '14' for Stanley Gibbons
