Certainly, here's a rephrased version of the text you provided:
Cultural and Temporal Context: Originating from the Viking culture during the 9th century
Discovery/Acquisition Location: Found in Europe, specifically in Scandinavia, Norway, in Akershus County, Ullensaker, at Gislevoll
Materials: Crafted from copper alloy
Craftsmanship Technique: Constructed through casting and the application of decorative elements
Description: This is a copper alloy oval brooch, featuring a two-piece construction. The upper shell is domed and adorned with nine applied bosses. The brooch also displays openwork decoration, featuring motifs resembling a beast-catcher and lattice-framed bird designs.
Notably, the brooch shows signs of antique repair, indicating its historical use and care. On the reverse side of the brooch, imprints of textiles used in the casting process are visible, providing insights into the craftsmanship techniques of its creation.