This item belonged to my careful and proper mother, who died at age 78. It was always kept in a smoke-free environment. As is where is. 4 glass lids Amazon sells 2 big and 2 small ones without lids for $75. See at https://www.amazon.ca/Corningware-Cornflower-4-Piece-Ceramic-Bakeware/dp/B07KFJZZ18/ref=sr_1_26?gclid=CjwKCAjwqNnqBRATEiwAkHm2BMXRs734jn-bIHta2nAiat2lvg_gXOkhpMx6xOQGOpuqujnFoGdj0BoCvhYQAvD_BwE&hvadid=208380163615&hvdev=c&hvlocphy=9001253&hvnetw=g&hvpos=1t1&hvqmt=e&hvrand=11907249538025069422&hvtargid=aud-749227636300%3Akwd-301380308041&hydadcr=21266_9444707&keywords=corningware+casserole+dish&qid=1566013429&s=gateway&sr=8-26