1926 (18 Nov) Industrial Exposition registered cover from Macao to Argentina, redirected to Chile, f.w. scarce Ceres ovpt. "EXPOSICAO
1926 (18 Nov) Industrial Exposition registered cover from Macao to Argentina, redirected to Chile, f.w. scarce Ceres ovpt. "EXPOSICAO INDUSTRIAL 1926" 2a + 2x 12a on both sides (Yang U3), plus Industrial Exposition seal label, tied by hexagonal registered d.s. On front applied with Industrial Exposition registered mark. Transit Hong Kong (19 Nov), New York (19 Dec). Arrived Chile (20 Jan). An exhibition item. With water stains. Choi Cheong Too recorded only 6 covers of this Industrial Exposition. Illustration in “Historia e Desenvolvemento dos Correios e das Telecomunicacoes de Macau” Vol. 2 p.654 fig. 251 by Luis Virgilio de Brito Frazao.1926.11.18 澳門實業展覽會掛號封寄阿根廷，轉寄智利，正背共貼稀罕難得之五穀女神加蓋“EXPOSICAO INDUSTRIAL 1926”2仙 + 2x 1毫2仙（楊目U9），另貼展覽會紀念標籤。正面鈐展覽會掛號戳。11.19經香港，12.19經紐約。1.20抵智利。郵展級別之大珍品。帶水漬。 出自此展覽會之信封，蔡昌道記錄僅有六件。范笙祿著《澳門郵政與電訊的歷史和發展》第二卷第654頁第251號圖例原件。
