pper ▁and ▁iron ▁ox ides ▁at ▁high ▁temperature . ▁This ▁was ▁a ▁difficult ▁technique , ▁first ▁developed ▁in ▁China ▁in ▁the ▁ 1 3 th ▁century ▁and ▁rein vent ed ▁by ▁several ▁art ▁pot ters ▁in ▁Europe ▁in ▁the ▁late ▁ 1 9 th ▁century . ▁William ▁How son ▁Taylor ▁was ▁one ▁of ▁the ▁principal ▁ex ponents ▁of ▁' high ▁fired ' ▁techniques , ▁producing ▁a ▁range ▁of ▁colours ▁and ▁unique ▁' f iss ured ' ▁gla ze ▁effects . ▁ ▁Having ▁exhib ited ▁at ▁home ▁and ▁at ▁international ▁fine ▁art ▁exhib itions , ▁the ▁award ▁of ▁a ▁" grand ▁prize " ▁in ▁ 1 9 0 4 ▁at ▁the ▁St ▁Louis ▁International ▁Ex hib ition , ▁gave ▁them ▁the ▁recognition ▁they ▁needed . ▁Further ▁awards ▁were ▁gained ▁at ▁other ▁international ▁exhib itions , ▁including ▁Milan ▁ 1 9 0 6 ; ▁Christ ch urch , ▁New ▁Zealand , ▁ 1 9 0 7 ; ▁London ▁ 1 9 0 8 ; ▁Br uss els ▁ 1 9 1 0 ; ▁Tur in ▁ 1 9 1 1 ; ▁Gh ent ▁ 1 9 1 3 . ▁ ▁When ▁the ▁studio ▁closed ▁in ▁ 1 9 3 5 ▁the ▁formula e ▁for ▁the ▁gla zes ▁and ▁all ▁the ▁pot tery ▁documentation ▁were ▁deliber ately ▁destroyed , ▁so ▁that ▁the ▁unique ▁Rus kin ▁products ▁could ▁never ▁be ▁rep licated . ▁ ▁A ▁large ▁collection ▁of ▁Rus kin ▁Pot tery ▁is ▁on ▁public ▁display ▁at ▁Wed nes bury ▁Museum ▁and ▁Art ▁Gallery , ▁Wed nes