. ▁Bur ton ▁had ▁the ▁first ▁piece ▁of ▁plat in um ▁to ▁be ▁hall mark ed ▁at ▁the ▁London ▁Ass ay ▁Office ▁in ▁ 1 9 7 3 ▁when ▁hall mark ing ▁for ▁plat in um ▁was ▁introduced ▁under ▁the ▁Hall mark ing ▁Act ▁of ▁ 1 9 7 3 ▁and ▁plat in um ▁became ▁a ▁recognized ▁metal ▁under ▁the ▁Vienna ▁Convention ▁on ▁the ▁Control ▁of ▁the ▁Fin eness ▁and ▁the ▁Hall mark ing ▁of ▁P reci ous ▁Metal ▁Object s . ▁This ▁piece ▁is ▁at ▁G olds m ith s ' ▁Hall . ▁She ▁became ▁a ▁fre eman ▁of ▁the ▁Wor ship ful ▁Company ▁of ▁G olds m ith s ▁in ▁ 1 9 7 4 . ▁ ▁In ▁ 2 0 0 3 , ▁Bur ton ▁was ▁the ▁first ▁woman ▁to ▁receive ▁the ▁City ▁and ▁Gu ild s ▁of ▁London ▁Institute ▁top ▁award , ▁the ▁Prince ▁Philip ▁Medal . ▁ ▁Bur ton ▁was ▁a ▁member ▁of ▁The ▁People ' s ▁Super market , ▁opened ▁in ▁Lamb ' s ▁Con du it ▁Street ▁by ▁Arthur ▁Pot ts ▁Daw son ▁in ▁ 2 0 1 0 . ▁Bur ton ▁regularly ▁appeared ▁in ▁the ▁Channel ▁ 4 ▁document ary ▁of ▁the ▁same ▁name ▁in ▁ 2 0 1 1 . ▁ ▁In ▁ 2 0 1 2 , ▁Bur ton ▁appeared ▁on ▁Radio ▁ 4 ' s ▁Mid week ▁program ▁for ▁an ▁interview , ▁celebr ating ▁ 4 0 ▁years ▁of ▁her ▁career . ▁ ▁In ▁ 2 0 1 8 , ▁Bur ton