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.

• 15210pr0006 Road Sign Clip-on 2 x 2 Square [Thick Open O Clip] with Pedestrian Crossing on Blue Background Print Alternate of this part
• 30258 Road Sign Clip-on 2 x 2 Square this part is a print of it