Vintage Brass/Metal William Proctor Jr RX Secundum Artem Mortar and Pestle Bookends in raised letters on the bottom is "Secundum Artem".  In good vintage condition.  It measures approx. 5" tall & 4.25" wide.  William Proctor Jr. (1817-1874) was an American pharmacist who is known for his role in establishing the American Pharmacists Association.  He also was part founder of the company Proctor and Gamble.  

The Brass William Proctor Rx Pestle Bookend is a vintage piece from the early 1900s, reflecting a time when apothecaries and pharmacies played a significant role in healthcare. This mortar and pestle set, featuring a unique design with a bookend shape, embodies the historical significance of scientific and medical practices. It serves as a symbol of traditional craftsmanship and the art of formulating remedies, making it a valuable collector's item for those interested in antique science and medicine artifacts.