拍品號碼 5809

《蔡昌道郵集-澳門郵票暨郵政史》第六冊第99頁實物。 both f.w. Ceres 3rd series 2a issues with right star omitted varities. Only two covers recorded for this variety. Extremely rare. Illustration of "The Choi Cheong Too Collection The Postage Stamps and Postal History of Macao 1616-1913" Vol. VI. P.99.