8 ▁and ▁G 2 0 ▁summ its , ▁along ▁with ▁pens ▁for ▁Prince ▁Charles , ▁Princess ▁D iana ▁and ▁Barbara ▁Cart land . ▁Con way ▁Stewart ▁introduced ▁a ▁few ▁prototype ▁cell ul oid ▁pens , ▁mainly ▁as ▁over l ays ▁on ▁solid ▁silver ▁D uro ▁pens . ▁The ▁company ▁supplied ▁another ▁set ▁of ▁gold ▁pens ▁for ▁the ▁celebr ation ▁of ▁Her ▁Majesty ' s ▁Golden ▁J ub ile e ▁featuring ▁a ▁hard ▁rub ber ▁Church ill ▁with ▁an ▁ 1 8 ct ▁Over lay . ▁Only ▁a ▁few ▁pieces ▁were ▁sold . ▁Don ▁Y end le ▁sold ▁the ▁company ▁to ▁an ▁invest or ▁in ▁October ▁ 2 0 0 3 ▁having ▁established ▁world wide ▁distribution . ▁ ▁Bibli ography ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Official ▁website ▁ ▁Writ etime . co . uk ▁– ▁a ▁deal er ' s ▁website ▁with ▁illustr ations . ▁ ▁Con way ▁Stewart ▁V int age ▁P ens ▁– ▁deal er ' s ▁+ ▁collect or ' s ▁website ▁with ▁information ▁+ ▁illustr ations ▁for ▁v int age ▁Con way ▁Stewart ▁pens . ▁ ▁Category : F ount ain ▁pen ▁and ▁in k ▁manufact ur ers ▁Category : W rit ing ▁implements ▁Category : Def unct ▁companies ▁based ▁in ▁London ▁Category : Man ufact uring ▁companies ▁based ▁in ▁London ▁Category : Man ufact uring ▁companies ▁established ▁in ▁ 1 9 0 5 ▁Category : Man ufact uring ▁companies ▁dis est ab lished ▁in ▁ 1 9 7 5 ▁Category : 1 9 0 5 ▁establish ments ▁in