Tin-glazing in the kiln atmosphere and therefore a flame-burning kiln. Traditional kilns were wood firing, which required the pots to be protected in the glaze and luster firings by saggars or to be fired in a muffle kiln. Except for those making luster ware, modern tin-glaze potters use electric kilns. The recrystallisation of tin oxide during the firing provides evidence of the slightly different methods of different production sites, as the crystal size, the distribution and the concentration may be influenced. For instance, the analysis of the 14th century Islamic tin glazes from eastern Spain indicates that these samples may be
Lead 15th Anniversary Live Box DVD held their fifteenth live tour "Lead Upturn 2017 ～This is Our Day～". The live box charted at #59 on the Oricon DVD charts and #61 on the Blu-ray charts, remaining on the charts for one week. "Lead 15th Anniversary Live Box" is a DVD/Blu-ray two disc collection released by the Japanese hip-hop group Lead on December 20, 2017. It charted #59 on the Oricon DVD charts and #61 on the Oricon Blu-ray charts, where it remained on both for one week. The live box featured two separate performances spanning across two DVD/Blu-rays to celebrate the group's fifteenth anniversary in