| Description | Annexed return forms from other tin-works: Avondale, Pontnewydd, 1936; Baglan Bay, 1936; Clayton, 1936; Copper Mines, Cwmavon, 1936; D.R. David, Taibach, 1936; Gwynne, Britain Ferry, 1936; Park, Clydach, 1936; Pemberton, Llianelli, 1933 and 1936; Phoenix, Lower Cwmbach, 1936; Redbrook, 1935; Upper Forest and Worcester, 1936; Western, 1936; Yniscedwyd, 1936 |