For your consideration is a vintage bed or mattress cover.  This is a cotton with lace on the top and down the sides 18 1/2".  It has a lace design and a monogram of TB or BT.  I am not sure what this really is as there are button holes all the way round about every 11".  A design so that you could add tassels?  A way to hook it down to the springs of a box spring?  It is 58" wide and 83" long.  It is a solid white but does have some light stains as shown.  There is some damage to the lace on the edge as shown.

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