Builders had started on a new housing development a quarter of a mile away, the digger buckets were cutting into smooth yellow clay... I hooked my trailer up, went to visit, asked for a grab of that clay, and took it home. 24 hours later, I had this. I did fire some samples, this one escaped, it's in a store of largely forgotten stuff, long story.... which I'll miss out altogether.
It's a baluster jug, loosely based on mediaeval stuff, hence the unfinished foot.