Is calligraphy written directly on a blank scroll valuable for collection?

Calligraphy written directly on a blank scroll, if made by a famous artist, is exquisite in materials and techniques, and may have certain collection value. However, if it is created by ordinary calligraphy lovers, or if the materials and techniques of the scrolls are relatively general, it may not have much collection value.

The collection value depends not only on the quality of the work itself, but also on many other factors, such as the author's popularity, historical background, material and technology of the work. Therefore, if you plan to collect this kind of calligraphy works, I suggest you carefully evaluate its value from many aspects and understand the market demand and trend.