This is the 3312th most frequent Russian word.
палестинского
The word "палестинского" in English means "Palestinian" (possessive or adjectival form).
In this sentence, 'палестинского' is used to describe the origin of the artifacts, making it an adjective form of 'Palestinian'.
Этот музей хранит экспонаты палестинского происхождения.
This museum houses artifacts of Palestinian origin.
Here, 'палестинского' connects to 'искусства', indicating that the art originates or relates to Palestine, acting as a descriptor.
Мы посетили выставку палестинского искусства.
We visited an exhibition of Palestinian art.
In this example, 'палестинском' describes the style of the jewelry, showing stylistic influence or origin related to Palestine.