DesertGold/Moorcroft: https://www.desertgold.us/moorcroft/Moorcroft.html
MAGNOLIA Blue Lidded Oval Dish Approximate Dimensions: 5" (12.7 cm) length 3.5" (8.89 cm) width 1.25" (3.175 cm) height Circa: 1976-1980s Walter Moorcroft