Answer:
Winston is fascinated by the glass object, by its particular softness, as of rainwater as the book describes, in both the colour and texture of the glass.
Explanation:
This question is related to the book 1984 by George Orwell. The object Winston bought was a glass paperweight, curved on one side, with a pink coral embedded to it. The color and texture of the object immediately stood out for winston, as expressed in the book "there was a peculiar softness, as of rainwater, in both the colour and the texture of the glass". The glass paperweight becomes symbolic in the novel, as it symbolizes the mystery and charm of the past, and the coral embedded in the center represents the problem in WInston´s life who wants to learn about the past, but too many obstacles stop him. It's also a rarity, as any Party member would look suspicious for having anything old or beautiful in their possession.