These 3 pieces are a white cotton lace with red and blue details, from the early 1900s and probably removed from a dress or blouse.
They are 12-1/2 to 13 inches wide and 4 inches long.
I guess that they would be a tape lace, probably machine made, with red and blue stitching around the lace and red and blue lace centers. Sides are cut.
Excellent condition. White is nice, red and blue are bright.