Rare Corningware A-10-B 2.5 liter square baking pan

Vintage 1960/70's CORNING WARE 2 1/2 Liter casserole with lid.  White milk glass with Blue Cornflower marked Corning Ware, A-10-B, 10x10x2 inch, Range - Oven.  Believe this to be from one of the earlier production runs during its manufacture due to the very low MA designation.  Everyone shown on eBay that I have seen has a number significantly higher and in most cases much, much higher?  Comes with a Pyrex glass lid.  It is in excellent condition and compared to many on eBay shows extremely well.  Has been well cared over the years.  But I would rather let you view the pictures I am presenting for you to form your own opinion as to both the quality and condition of this vintage piece.  Being reasonably offered for a reduced $300 in comparison to others of comparable quality on eBay. some expected scratches from cookware that is over half a century old.