Pyrex Vintage Pyrex Square Glass Lid #27‎ for Corning Ware (P-9-C-1)

This glass lid has no chips or cracks. But it does have some sort of scrape on the underside of the lid. I suspect it was scraped while be stored with other items. See pictures for more details. Pyrex, 27 and P-9-C-1 on rim. 2262-J78