What beautiful chests and workman ship. you are a very talanted person. BUT...
are those your quilts you are storing? if they are, i heard it mentioned at a quilt quild i belonged to at one time, that... quilts just being stored on a wooden shelf would discolor from having touched the wood at some point. this was said, as some antique quilts were being displayed. and they were saying why they were discolored. maybe you should line those chests, if they are your storage.