I'm pleased to say that with a little expert help from Richard @ Redhouse Glass Crafts, The Ruskin Centre. Stourbridge, my little vase which I'm now sure is STUART and Not Powell, should be back with me by Mid November.It's in a queue of glass items waiting to be 'cleaned' in a tumbler machine at this workshop. It takes 4 days of continuous tumbling with his mix of cleaning powders.