I think we are talking about Sowerbys' pattern 2505. This came in several sizes and shapes of vase as well as, if my memory is OK, a salad bowl. All colours, of course. Star-shaped holders for the vases and black plinths could all be supplied and were usually, but not necessarily, ordered complete.
Three (?) sizes of vase in three shapes and at least four colours - there we have 36 variants plus the holders and plinths. You can understand why our warehouse manager always looked a bit stressed!