Yes its possible and its possible to get it back to, in the dark world if you know where the sanctuary is from the light world go there in the dark world then go right then go down you will see a shop theres ledges that you can jump down that allow you to get there in there you can buy a mirror shield.
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.
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.
windshield DUH
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.
Be my mirror, my sword and shield
There is the Hero's Shield (which you start with) and the Mirror Shield (obtained in Ikana Well).
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.