First you must get your iron shield from the Gorons, and then play The Legend of Zelda Oracle of Ages to get the secret for The Mirror Shield.
In order to get the mirror shield, you must defeat the mini boss of three stalmasters in the Earth Temple
No one acted as a mirror for Perseus. Athena's polished shield acted as a mirror for Perseus though.
You will get the Mirror Shield after you defeat the miniboss in the Earth Temple
It's not a gold shield, but the mirror shield, and you get it in Turtle Rock, the seventh dungeon in the dark world.
The important thing is to carry a mirror shield with you. Otherwise, the cockatrice will quickly lower your combat stats. You can buy a mirror shield from any slayer master, or from the Grand Exchange.
windshield DUH
There is the Hero's Shield (which you start with) and the Mirror Shield (obtained in Ikana Well).
Be my mirror, my sword and shield
You get it when you get it, which is in the Spirite Temple (unless you cheat)
i think you get it from the spirit temple (the one in the desert).
You get it as the dugeon item in the earth temple
he used the shield athena gave him like a mirror. when medusa went after the shield(thinking it was perseus)persus cut off her head.
There is a bird that steals your items near milk road if you don't have a sword, or bottles it will take your shield.