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.

• upn0070c01 Storage Case, Dacta with Sliding Clear Cover and Insert (set 1030) this part is a sub-part of it
• upn0091c01 Storage Case, Dacta, with Sliding Clear Cover and Insert (set 1032) this part is a sub-part of it