I have a set of coffee and soup mugs with this pattern on them.
There is no markings on the bottom of any of them to denote who made them or when. They belonged to my parents, who have had them for as long as I can remember.
One of the mugs has a long crack on the inside of the mug. My mom had placed a cutting from one of her house plants in it, but I managed to kill it after she passed away. 😦
I tried doing one of those image searches with the above photo to see if I could find anything out about it, but there was nothing that looked even remotely like it. It’s very 70s looking, isn’t it. Maybe that’s why I like it so much.
I hear there are still paint-your-own-pottery places, but I don’t know where. That would probably be my only way to ever get a replacement for the cracked mug.