After finding 'Beside the Wave' gallery at Primrose Hill I took the tube south from Chalk Farm to Tottenham Court Road. As every potter visiting Britain knows, that's the stop for the Contemporary Ceramics Centre at 63 Great Russell Street, Bloomsbury, London WC1B 3BF, across from the British Museum. Thinking of taking a selfie to prove I was there, a Vancouver artist friend of Jackie Frioud (Salt glaze…