The document makes it clear that Raffelstetten was a place where German slave traders and their Slavic counterparts exchanged goods: salt, weapons, and ornaments were sought by slave trading adventurers.
Raffelstetten was a place where German slave traders exchanged goods: salt. Raffelstetten was a place where their Slavic counterparts exchanged goods: salt. The document makes it clear this. Salt is weapons. Ornaments were sought by slave trading adventurers.