The pre-Akkadian kingdom was famed for its acrobats, who were in demand in Ebla and trained local Eblaite entertainers. The kingdom also had its own local glyptic style called the "Brak Style", which was distinct from the southern sealing variants, employing soft circled shapes and sharpened edges. The Akkadian administration had little effect on the local administrative traditions and sealing style, and Akkadian seals existed side by side with the local variant. The Hurrians employed the Akkadian style in their seals, and Elamite seals were discovered, indicating an interaction with the western Iranian Plateau. Tell Brak provided great knowledge on the culture of Mitanni, which produced glass using sophisticated techniques, that resulted in different varieties of multicolored and decorated shapes. Samples of the elaborate Nuzi ware were discovered, in addition to seals that combine distinctive Mitannian elements with the international motifs of that period.