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
ROH 15th Anniversary Show ROH 15th Anniversary Show ROH 15th Anniversary was the two-night 15th ROH Anniversary Show professional wrestling pay-per-view (PPV) event produced by the American wrestling promotion Ring of Honor. It took place on March 10 and 11, 2017, at the Sam's Town Live in the Las Vegas suburb of Sunrise Manor, Nevada. The first night was a pay-per-view broadcast, while the following night was a set of tapings for the ROH flagship program "Ring of Honor Wrestling". ROH 15th Anniversary features professional wrestling matches that involved wrestlers from pre-existing scripted feuds or storylines that play out on ROH's television program, "Ring