Mary Florence Potts patented sadirons with “Cold Handles” beginning in 1871. Various manufacturers issued these popular irons. She became the worldwide spokesperson for her designs, and Victorian era Mrs. Potts trade cards were a popular collectible with housewives of that time. This card is signed “Yours Truly Ms. Florence Potts”, with the legend “Inventress of Mrs. Potts Cold Handle Sad Iron.”
See also Mrs. Potts Sad Irons.