<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31326138</termId><termName>artistamps</termName><termType>PT</termType><termNote><![CDATA[ Stamps that share the appearance of conventional postage stamps, including size, perforated edges, and in some cases imagery, but that are created and used by artists engaging in the practice of mail art. ]]></termNote><termCreatedDate>2026-03-30 20:27:54</termCreatedDate><relation><relationType>UF</relationType><termId>31326139</termId><termName>artist stamps</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31326140</termId><termName>artist&apos;s stamps</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31326141</termId><termName>artistamp</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31307831</termId><termName>stamps</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31326396</termId><termName>mail art</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31326552</termId><termName>stamp art</termName><termType>PT</termType></relation></term>  </Zthes>