PYREX Fireside Naturals 6230-F 1.5 Quart Covered Casserole

Vintage PYREX Fireside Naturals 6230-F 1.5 Quart Covered Casserole Has small chip/bubble on lid, can't tell if it's a bubble or a chip. I believe it's a bubble from when it was made. See Picture For oven and microwave, no stovetop or broiler