The sealed version refers to the version of the book, which is directly printed on the document with the signature seal, which is different from the autograph. For example, the author engraves his signature on the seal and seals it directly where it is needed. This kind of book or material is called a printed version.
In addition to the ordinary edition, there are various kinds of books in the store, such as collection edition, supplement edition, print edition and so on. Collection refers to the edition with collection value, and supplement refers to the edition with added content when the edition is pointed out.
A seal refers to stationery printed on a document to indicate identity or signature. Generally, it will be stained with pigment before printing on books, and some will be printed on wax or wax. If you don't touch the pigment, there will be concave-convex steel seal after printing on the plane.
Distinguish whether the signature on a book is handwritten or printed, and you can take it to a reflective place for observation. If it is a real signature, it is that the ink protrudes and is insoluble in the paper itself. If it is printed, the handwriting will be integrated with the paper itself.