OK, so I know that these are actually cups by Taylor, Smith and Taylor but without their saucers they sort of look like squat mugs. I really like the “atomic” looking green, blue and black designs - the pattern is called Cathay. The insides of these cups are a solid olive green in color. They aren’t actually marked as TST on the bottom. (I believe the saucers are marked.This is always an issue for mug and cup identification - when a saucer is marked but the cup isn’t, and you don’t have the saucer!) I actually suspected they were TST because I’ve noticed this style of handle on their cups before.