If your vintage materials are on the exempr list there should be no problem that I can see. Just keep a swatch of the fabrics on an index card with the date of manufacturer, what it was, and when it was sold and to whom. If you add buttons, etc. attach the button card, a sample of the button, whatever. Attach a photograph of the garment. I put lots of little pics of garments on one sheet of printer paper, and print them off, cut them apart and staple one to the index card. Keep a card file. If you have documentation of testing from suppiers, cross reference that on the card, and keep the documentation in another file in alphbetical order by vendor/supplier. Just be sure you are adding the proper fabric, care an origin labels that you should have been already doing. Add your "designer" label with your company name, city, state.