Vintage Camark Pottery Blue Cup And Saucer Set USA 436

This vintage Camark pottery teacup and saucer set is very clean and appears to have never been used. The cup is 2.5"  tall by 2.5" round at the top. When the cup is sitting on the saucer they are 3" tall. It is marked on the bottom USA 436. It has no chips or cracks. A tiny amount of crazing can be seen on the bottom of the cup and it has a tiny glaze pop. The saucer is 4.25" round and has no chips, cracks or crazing. There is one glaze pop on the surface near the center and four very small beige spots of discoloration. There are three glaze pops on the back near the center.  This set has a nice glossy finish.