cover Trinidad Shipping and Trading Co., 1892-1931 selection of covers (14) mostly to North America and including 1892 per Arecuna bearing 4d. grey (2), 1899 and 1902 from Port of Spain per Grenada franked at 2½d., 1906 "stamp" card to Canada and three others per Maracas, 1901-02 covers (3) and 1921 envelope to Porto Rico, all four per Maraval, and three others