Designed by Sandford Fleming, what was considered Canada's first postage stamp?

The Province of Canada began issuing stamps on April 23, 1851. The first were in the values of 3d, 6d, and 12d. Designed by Sir Sandford Fleming, the Threepenny Beaver depicted a beaver in an oval frame, and is considered the first Canadian postage stamp.

It was the first official postage stamp anywhere to picture an animal, though an unofficial postmaster's provisional from St. Louis, Missouri showed two bears in 1845. The 6d was a portrait of Prince Albert from a drawing by William Drummond Esq. The 12d (1 shilling) was reproduced from a full-length painting of Queen Victoria done by Alfred Edward Chalon. All three stamps were produced by the firm of Rawdon, Wright, Hatch and Edson of New York.