There are two types of pillowcases, the Oxford and the Terse.
Oxford Silk Pillowcase: An Oxford silk pillowcase is characterized by its decorative border or trim around the edges. This border is usually wider and more prominent, creating a framed effect around the pillowcase. The border is often stitched separately and then attached to the main body of the pillowcase. This design element adds a touch of elegance and sophistication to the pillowcase.
Terse Silk Pillowcase: It is a simpler and more minimalistic style. It does not have a decorative border or trim. The edges of the pillowcase are typically finished with a clean and neat hem, providing a sleek and streamlined appearance. This design is more understated and straightforward.
The difference lies primarily in design and aesthetic preferences. Ultimately, it comes down to personal preference and the style that best suits your taste and bedroom decor.