Found a soup tureen and lid; it looks like Merry Mushrooms but it's unmarked and I've never seen one with sideways handles. The red on the mushrooms appears to be painted on after being fired, which would explain why it's chipping off so easily. And there ...
Merry Mushroom Soup Tureen 1978 With Lid, Ladle, and Underplate - Etsy
Arnels Merry Mushroom 1981 Beige Soup Tureen Made in Japan 9" Tall | eBay
Vtg Mod Sears Merry Mushroom Soup Tureen with Spoon Rest 1970's (5 pieces) | eBay
1978 Sears and Roebuck Co Merry Mushroom Soup Tureen | Etsy | Tureen, Stuffed mushrooms, Roebuck
Vintage 1978 Sears, Roebuck And Co Mushroom Motif Lidded Jars And Soup Tureen
Merry Mushroom Soup Tureen With Platter and Ladle - Etsy
RARE Vintage 1970's Magical Mushroom Kimco Japan Tureen | eBay