Wm. Collins Sons & Co. Canada Ltd published 459 books in their White Circle imprint between 1942 and 1952. Thirty of the books were renumbered reprints, eighteen published in 1944 and eight in 1945-1947. Then none for four years. The last four came at the very end of the imprint in a run of 17 books in 1952. Included among them is the only time a cover was reused and the only time a title was given a third number. The impression is that the imprint is running out of steam.