Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

• 31213pr9993 Duplo Brick 2 x 4 x 2 Curved Top with Horse Head Looking Left in Flowers Print Alternate of this part
• 31213 Duplo Brick 2 x 4 x 2 Curved Top this part is a print of it