CREATE TABLE table_57512 ("Date of Issue" TEXT, "Theme" TEXT, "Design" TEXT, "Illustration" TEXT, "Paper Type" TEXT, "First Day Cover Cancellation" TEXT)

What is the Illustration with a Design of tim nokes, and a First Day Cover Cancellation with calgary, alberta?
SELECT "Illustration" FROM table_57512 WHERE "Design" = 'tim nokes' AND "First Day Cover Cancellation" = 'calgary, alberta'
SELECT "Illustration" FROM "table_57512" WHERE "Design" = 'tim nokes' AND "First Day Cover Cancellation" = 'calgary, alberta'