From the Wood Library-Museum’s Ben Z. Swanson Collection, dentist Charles H. Cannon (c. 1847–1909) had problems managing the printer of his trade card (above). First, his printer misspelled Cannon’s anesthetic armamentarium as “local Anaesthetics, also with Gas or Either.” Then the advertising was printed downhill on the card. Because dentist Cannon was listed in the 1896 but not the 1897 directory for Providence, Rhode Island, we can surmise that he did not arrive in Walpole, New Hampshire, until late in 1896 or in 1897. Because the druggist referred to on this card, N. H. Wheeler, ended up moving to Vermont in 1898, we can date this trade card to approximately 1897. That means that hapless Dr. Cannon may have had less than one year’s use of his typographically challenged trade cards. (Copyright © the American Society of Anesthesiologists’ Wood Library-Museum of Anesthesiology.)
Source: Anesthesiology