This 1923 $1 Silver Certificate is a premier example of "Large Size" U.S. currency, famously nicknamed the "Horse Blanket" due to its substantial dimensions (7.38" x 3.13"). This specific note features the historic signature combination of Register of the Treasury Harvey Speelman and Treasurer of the United States Frank White. As the final series of large-format silver certificates ever issued, the 1923 series represents a pivotal transition in American fiscal history before the shift to modern "small-size" notes in 1929. The obverse showcases a bold, centered portrait of George Washington, flanked by the iconic blue Treasury seal and serial numbers. Each of these certificates was originally a legal claim for one silver dollar held in the U.S. Treasury. Given the age and the tendency for these notes to be heavily handled, surviving examples with legible serial numbers like E72428407D remain highly desirable for collectors specializing in early 20th-century type notes. Please refer to the photos for a detailed assessment of this item's condition.