From the late 19th century a homespun feather mattress tick cover in a red, white and blue check ~ great Americana colors! Very suitable for a country primitive farmhouse decor.  My opinion, a factory made homespun fabric, home sewn on a treadle machine. 

The tick is sewn with three width of fabric, each width is 32" wide.  Overall size of the tick is 64" wide x 48" long,  Opening on one end, with the opening length 50".  No closures, such as buttons etc.  Possibly a linen fabric or a blend of linen and cotton.  Durable weight. 

Condition is very nice.  Perhaps never used.