From the Guangdong office of China Post, this 2012 product is a hardcover book encased in a translucent sturdy (hard) plastic sleeve.  Scan for this entry 20307481A is the cover of the book, and 20307481B is one of the four facings with postcards in maximum style but without postmarks.  Other facings in this book of four hard pages (so a total of ten facings, including front and back inside covers) include mint stamps and envelopes.  With bilingual captions in Chinese and English, this item–which is all about jade–can best be described as elegant, and a piece of art all on its own.  The product when in the plastic cover measures 7-3/4″ x 10-5/8″.  Grade: 1