Bit of a mystery but will describe to the best of my ability.  From an estate with many items from Germany.  This pillow cover is typical of those made decades ago in Berlin.  It feels like acrylic wool.  It has cross stitch red and black squares/diamonds and a zipper that was hand sewn.  The multicolored sections appear to be some kind of piping that looks like latch hook but is not.  It has a red satin-type fabric backing.  The zipper is in good working order.  Multicolors include red, black, blue, green orange.  Geometric or Abstract Floral.