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.

• 51704pr9997 Duplo Brick 2 x 10 x 2 Arch with Large Bricks, Police Badge Print this part is a alternate of it
• 51704 Duplo Brick 2 x 10 x 2 Arch this part is a print of it