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.

• 309pr0004 Baseplate 32 x 32 Split with 2 x 14 Center Studs, White and Green Lines Print this part is a mold of it
• 309 Baseplate 32 x 32 Split with 2 x 14 Center Studs [Plain] this part is a print of it