<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31412053</termId><termName>Cluthra glass</termName><termType>PT</termType><termNote><![CDATA[ A type of art glass characterized by large air bubbles of various sizes combined with larger unsifted glass particles, and cased with heavier clear glass. Cluthra glassware is made from a lump of crystal glass on a blowing iron, which is rolled across a marver that had been sprinkled with powdered glass of any desired color. It was developed at Steuben Glass Works before 1930 as a variation on the very similar Clutha glass. ]]></termNote><termCreatedDate>2026-03-30 20:50:47</termCreatedDate><relation><relationType>UF</relationType><termId>31412054</termId><termName>glass, Cluthra</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31375100</termId><termName>art glass</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31375113</termId><termName>Clutha glass</termName><termType>PT</termType></relation></term>  </Zthes>