Tet Asman was a location of which Abo was a god.[1]
Behind the scenes[]
The Tet Asman of the Indiana Jones and the Last Crusade 1990 Adventure Calendar appears to be derived from Tell Asmar in Iraq where the Tell Asmar Hoard was uncovered, including the statue upon which the God Abo is based. It's unclear whether or not Tet Asman is simply a misspelling of Tell Asmar or a deliberate narrative embellishment.