Issued by China National Philatelic in 2018, this item measures 7″ x 10-1/4″ when folded.  It opens to reveal four panels, so it is 28″ long when fully extended.  This scan shows you the cover, with the orange sleeve off to the side.  Remove the sleeve and open the folio.   Each panel contains something different:  three FDCs, and one postcard bearing a serial number (see our entry 20307933B).  The back of the postcard is blank and the postage on the card is pre-printed.  Grade: 1