“…138-139, 142]. At the same time, there are also artifacts belonging to the urban population decorated by spinning threads, which are a silk warp entwined with a metal strip, as well as wire-drawn threads, which were probably brought from Europe [14,15]. In the mausoleum of the Bulgarian aristocracy dating back to the Golden Horde period, both spun and organic-based threads that were part of various types of fabric were found [16, pp.…”