The title for this item is not wrong, but slightly misleading for our purposes because the book has six postcards in it.  It’s a book inside a cardboard cover (pictured here), overall measurements 8-3/8″ x 11-1/4″.  Like many of the other items we have listed, this is a book of 16 page facings (inside covers plus seven pages) including stamp sheets, stamped envelope covers, and postcards in Maximum Card style except that none of these items have postmarks.  See 40100053B for one of the pages with a postcard.   Grade: 1