For your consideration, here is a Vintage Melmac Texas Ware White Turquoise Sugar Bowl and Creamer. They are not marked with a maker on the bottom other than numbers. The creamer has E 151 on the bottom of it. The sugar bowl has G 152.

Both have very little wear on them and have shiny surfaces. No cracks in them. The creamer is 4 1/4 inches tall. The sugar bowl is 2 3/4 inches tall, without the lid. Items pictured are the actual items up for sale and come from a non-smoking household. (132.103v-1.0bb)