Wrigley's Chunx Chewing Gum in Original Box. Chicago: Wm. Wrigley Jr. Co., 1964. Box of 14 (of 20) five-stick packs of Chunx, in original display box. Tucked inside the box are copies of three memos from Wrigley explaining that the brand has been discontinued, and all inventory destroyed, due to opposition to its trademark of “Chunx" from another corporation. 6 x 4 x 1". RARE examples of this briefly manufactured gum from Wrigley.