I don't have reliable information about a specific work titled "Exchanging Confidences" by John Tinkey in the medium of wood engraving. While wood engraving was a significant artistic technique, particularly popular in the 18th and 19th centuries, I cannot verify the details of this particular artwork without risking inaccuracy. I'd recommend consulting museum collections, art historical databases, or the Tinkey artist's documented catalogue for accurate information about this piece.