1923 & 1928 $1 Silver Certificate ,2 Piece Set “Changing Times” 1923 $1 Silver Certificate Last of the large size format Commonly known as a “Horse Blanket.” 1928 $1 Silver Certificate First year of the small size format. Commonly known as a “Funny Back.” These notes were backed by & redeemable for $1 in silver prior to 1968. Each note will ship in a PVC free holder if requested. You will receive similar notes, not the ones pictured. This is a stock item.