Canada advertising stamp covers. This collection contains 4 covers. Included are 1- Drawer 263, Aylmer, Ontario. The stamp is a 1 cent Victoria small queen, that has been placed upside-down. Has a clear squared circular Aylmer West, Ontario cancel, cancelled 1894. Has a clear Aylmer, Ontario address. 1- W. C. Pitfield & Co. Wholesale Dry Goods, Saint John, New Brunswick. The stamp is a 3 cent Victoria small queen, with a clear and distinct St. John, New Brunswick cancel, cancelled 1896. Has a clear Moncton, New Brunswick address. 1- The Standard Life Assurance Company, Brockville, Ontario. The stamp is a 3 cent Victoria small queen, with a distinct Brockville, Ontario squared circular cancel, cancelled 1895. Has a clear Warkworth, Ontario address. 1- H.S. McCollum, St. Catherines, Ontario. The stamp is a 1 cent Victoria small queen, with a clear and distinct St. Catherines, Ontario circular cancel, cancelled 1886. Has a clear St. Catherines, Ontario address.