Vintage 1970 stackable Coffee Mugs

Four vintage to 1970 stackable Tupperware Coffee mugs. In the Autumn harvest theme of yellow, orange, green and brown. The saucers can act as a lid as well. Great for camping or picnics. The cups are marked on the bottom 1312-13 and the saucers 1313-18. Three of the cups in good condition. The brown cup has some wear as noted in pictures.