▁guide ▁to ▁the ▁church . ▁ ▁The ▁ste e ple , ▁standing ▁about ▁ ▁tall , ▁was ▁finished ▁in ▁ 1 7 0 4 ▁at ▁an ▁additional ▁cost ▁of ▁ ▁£ 1 , 9 6 3 , ▁ 8 s . ▁ 3 ½ ▁d . ▁It ▁has ▁three ▁dimin ishing ▁store ys , ▁square ▁in ▁plan , ▁the ▁middle ▁one ▁with ▁a ▁fre est and ing ▁I onic ▁colon na de . ▁ ▁Over ▁the ▁course ▁of ▁the ▁church ’ s ▁existence , ▁significant ▁modifications ▁were ▁made . ▁In ▁ 1 7 6 0 , ▁a ▁vest ry ▁house ▁was ▁built ▁ ▁against ▁the ▁fac ade ’ s ▁south ▁ ▁side ▁and ▁part ▁of ▁the ▁church ' s ▁south ▁wall . ▁At ▁some ▁point , ▁rooms ▁were ▁en closed ▁in ▁the ▁north ▁and ▁south ▁a is les ▁beneath ▁the ▁gall eries . ▁St ained ▁glass ▁dep ict ing ▁Jesus ▁with ▁the ▁children ▁was ▁installed ▁in ▁the ▁centre ▁tr inity ▁window ▁to ▁replace ▁the ▁original ▁clear ▁glass . ▁ ▁The ▁church ▁function ed ▁as ▁an ▁important ▁centre ▁of ▁City ▁of ▁London ▁society ▁and ▁music . ▁The ▁Lord ▁Mayor ▁attended ▁an ▁annual ▁service ▁to ▁hear ▁ ▁the ▁An cient ▁Sp ital ▁S erm on ▁on ▁the ▁second ▁Wed nes day ▁after ▁E aster , ▁placing ▁ ▁his ▁cer emon ial ▁sword ▁in ▁a ▁special ▁holder . ▁Felix ▁M end els so hn ▁played ▁Bach ' s ▁A ▁minor ▁fug ue ▁and ▁other ▁works ▁on ▁the ▁organ ▁in ▁ 1 8 3 7 . ▁Samuel