International audienceThese last few years, researchers have focused increasingly on remains from pottery workshops discovered on western Anatolian sites and dated from the Late Byzantine and Early Turkish periods (Beylik and later Ottoman). Archaeometric analyses carried out on these ceramics, associated with new archaeological data, enabled to define production groups and thus to observe the appearance of new local types such as Turquoise Glazed Wares, Moulded Wares, as well as the so-called "Miletus Wares".This work, part of a Ph.D. study, presents the analysis of the decoration materials (slip and glaze) covering samples from these productions. The first results enable to define production techniques of these new ceramic types, dated to...