Bill Campbell art pottery oil lamp base or ikebana pale blue mauve cream

Bill Campbell round ceramic oil lamp base with no lid or an ikebana flower vase that needs a metal spikes holder inserted/attached to inside center. 5 across X 2-1/8 tall. Cream-colored unglazed bottom half, top half is glazed colors pale blue, mauve and cream. Made in USA. Seller doesn't know when it was made. Very good condition - no chips, no cracks, no crazing - but lid is missing if it was originally an oil lamp. (If Seller were keeping it, she would insert a spiked flower holder of some kind.) excellent for everyday use. supreme materials and excellent craftsmanship ensure long-lasting durability.