The upper floor rooms display more artistic and precious objects. In the main hall are two architectural models of the Grand Palace, the first representing the Grand Palace during the reign of King Rama I, and another in the reign of King Rama V. Behind these are numerous Buddha images and commemorative coins. In the doorway leading to the main hall is a small mother-of-pearl seating platform known as Phra Thaen Song Sabai (พระแท่นทรงสบาย), which was once located in the Phra Thinang Phiman Rattaya Throne Hall. The platform was used for informal audiences and dates from the time of King Rama I. At the end of the main hall stands the Phra Thaen Manangsila Throne (พระแท่นมนังคศิลาอาสน์; ), which is believed to date to the Sukhothai Kingdom and was brought back to Bangkok, from Sukhothai, by King Rama IV, when he was still a monk. Against the walls on either side of the hall are four different Buddha images of Javanese style; they were purchased by King Rama V. The room to the right of the Manangsila Throne displays the various seasonal robes of the Emerald Buddha. To the left of the main hall is a lacquer ware screen depicting the crowning of Shiva, king of the gods. The screen was formerly kept in the Phra Thinang Amarinthara Pisek Maha Prasat; it was saved from the fire apparently by the hands of King Rama I himself. The rest of the upper floor displays various objets d′art (such as a model of Mount Kailasa) and more Buddha images.