Founded by and named after William Pryor, Pryority Software released at
least two adventure games around 1984: one called Gateway, and the
better-known Forbidden Quest.
The Pryority package is a large folder, Infocom folio-sized and complete with inner flaps along the bottom to hold the game materials in. Pryority's claim to I-F uniqueness was called "Artext", which incorporated a series of glossy artwork sheets in the game package (and also served as the off-disk copy protection -- details in the pics were omitted from the game text, a la the Tresyllian Castle brochure in Moonmist).
One amusing detail about the Forbidden Quest artwork is the blue oval covering up the scantily-clad villainess' "area" (to borrow an MST3K term) on the package's reverse: