▁introduction ▁in ▁ 1 5 9 6 ▁well ▁up ▁to ▁the ▁mid - 2 0 th ▁century . ▁While ▁the ▁coat ▁of ▁arms ▁evol ved ▁throughout ▁the ▁centuries , ▁adopt ing ▁different ▁forms ▁and ▁minor ▁changes , ▁its ▁basic ▁elements ▁remained ▁much ▁the ▁same – a ▁castle ▁on ▁red ▁and ▁a ▁sea - l ion ▁on ▁blue . ▁When ▁the ▁Americans ▁established ▁the ▁Ins ular ▁Government ▁after ▁gain ing ▁control ▁of ▁the ▁Philippines , ▁they ▁introduced ▁a ▁coat ▁of ▁arms ▁for ▁the ▁whole ▁Philipp ine ▁Islands ▁where by ▁the ▁arms ▁of ▁Man ila ▁were ▁an ▁in es cut che on ▁on ▁a ▁shield ▁featuring ▁the ▁colors ▁and ▁stri pes ▁representing ▁the ▁United ▁States . ▁Later ▁in ▁ 1 9 3 5 , ▁the ▁Commonwealth ▁of ▁the ▁Philippines ▁adapted ▁the ▁Ins ular ▁Government ' s ▁arms ▁where , ▁again , ▁the ▁coat ▁of ▁arms ▁of ▁Man ila ▁were ▁an ▁in es cut che on ▁but ▁this ▁time , ▁over ▁a ▁shield ▁featuring ▁the ▁colors ▁of ▁the ▁Philipp ine ▁flag – red , ▁white , ▁and ▁blue ; ▁in ▁addition ▁to ▁the ▁three ▁stars ▁added ▁to ▁its ▁chief . ▁However , ▁the ▁colors ▁of ▁the ▁arms ▁of ▁Man ila ▁in ▁the ▁coat ▁of ▁arms ▁of ▁the ▁Commonwealth ▁had ▁been ▁alter ed ▁in ▁color . ▁Instead ▁of ▁the ▁castle ▁having ▁its ▁door ▁and ▁windows ▁in ▁blue , ▁they ▁were ▁made ▁argent . ▁The ▁sea - l ion ▁in ▁the ▁lower ▁field ▁was ▁made ▁gold ▁and ▁it ▁now ▁was ▁charged ▁on ▁an ▁argent ▁background . ▁The ▁coat