This post-war glass kitchenware is no longer being made, which means its increasingly rare and valuable.
One of the smartest things I did all year - get all Pyrex/Anchor glass containers. : r/CleaningTips
Don't Throw Out Grandma's Pyrex—Those Dishes Are Worth Real Money
Pyrex Blue Clear Bottom Mixing Bowl Set of 4 Nesting Bowls 1980s
Corning Ware/Pyrex Clear Square Glass Lid (Clear) (8 Width) (A-9-C) Made in the USA: Home & Kitchen
Vintage Pyrex bowls may be worth big bucks as collectors hunt high and low for nostalgic dishes
My wife sure makes food fight for freedom!” “Here's how I save precious food with Pyrex ware”
What Do the Numbers on the Bottom of Casserole Dishes Mean?
All You Ever Wanted to Know About Lead in Vintage Pyrex Bowls
Baked Parmesan Zucchini Recipe - Damn Delicious
the best baked spinach – smitten kitchen