▁in ▁bronze , ▁the ▁borders ▁of ▁the ▁latter ▁being ▁perhaps ▁the ▁most ▁remarkable : ▁the ▁model ing ▁of ▁the ▁figures , ▁birds ▁and ▁fol i age ▁of ▁the ▁south ▁door way , ▁by ▁Andrea ▁P is ano ▁( 1 3 3 0 ), ▁and ▁of ▁the ▁east ▁door way ▁by ▁G hi ber ti ▁( 1 4 2 5 – 1 4 5 2 ), ▁are ▁of ▁great ▁beauty ; ▁in ▁the ▁north ▁door ▁( 1 4 0 2 – 1 4 2 4 ) ▁G hi ber ti ▁adopted ▁the ▁same ▁scheme ▁of ▁design ▁for ▁the ▁panel ing ▁and ▁figure ▁subjects ▁in ▁them ▁as ▁Andrea ▁P is ano , ▁but ▁in ▁the ▁east ▁door ▁the ▁rect angular ▁pan els ▁are ▁all ▁filled , ▁with ▁bas - rel ief s , ▁in ▁which ▁Script ure ▁subjects ▁are ▁illustrated ▁with ▁in numerable ▁figures , ▁these ▁being ▁probably ▁the ▁gates ▁of ▁Parad ise ▁of ▁which ▁Michel ang elo ▁speak s . ▁ ▁The ▁doors ▁of ▁the ▁mos ques ▁in ▁C airo ▁were ▁of ▁two ▁kinds ; ▁those ▁which , ▁extern ally , ▁were ▁c ased ▁with ▁sheets ▁of ▁bronze ▁or ▁iron , ▁cut ▁out ▁in ▁decor ative ▁patterns , ▁and ▁inc ised ▁or ▁in la id , ▁with ▁b oss es ▁in ▁relief ; ▁and ▁those ▁in ▁wood , ▁which ▁were ▁fr amed ▁with ▁inter la ced ▁designs ▁of ▁the ▁square ▁and ▁diam ond , ▁this ▁latter ▁description ▁of ▁work ▁being ▁Co ptic ▁in ▁its ▁origin . ▁The ▁doors ▁of ▁the ▁palace ▁at ▁Pal ermo