Heath Ceramics is based in Northern California and is one of the most sought-after sources for pottery, tile and other ceramics products, by designers, architects and consumers.
These are their nesting vases, which as you can sense for in the "before" photo and see in their Instagram video (last link below), are hand-trimmed to align perfectly as a set. I love these two glaze colors - indigo and dreamy green aqua.
See more bef-afters for Heath below, along with links to their website and Instagram.