Witches Hat Topical Pictorial Postmark Cancel. Pictorial postmarks commemorate local events celebrated in communities throughout the U.S. This is a unique pictorial postmark from "The Witching Hour Station, Salem, MA 01970." Graphic of a witches hat. Postmarked Oct. 6, 2005. Envelope is franked with a Flag Stamp. Postmark is on a clean, white, unaddressed, #6 envelope.