House:
The House of Representatives Chamber has 448 permanent seats. Unlike senators, representatives do not have assigned seats.
The mace, the symbol of the authority of the House and of the office of the sergeant at arms, is in the custody of the sergeant at arms. At the opening of a session of the House, a staffer in white gloves places the mace on a pedestal to the Speaker's right. The mace is removed from its pedestal when the Committee of the Whole is meeting and moved to a lower, less visible position near the Speaker's dais. After consideration of amendments in the Committee of the Whole, the committee rises and reports the measure back to the House. The mace is replaced on its pedestal, and the Speaker or Speaker pro tempore assumes the chair.
It is 46 inches high and consists of 13 thin ebony rods representing the original 13 states of the union. The rods are bound together by four crossing ribbons of silver, pinned together and held at the bottom and at the top by silver bands. The bands are decorated with floral borders and a repousse design. The name "Wm. Adams/Manufacturer/New York/1841." is engraved in the cartouche, located in the front center of the bottom band. This shaft is topped by a silver globe 4-1/2 inches in diameter and engraved with the seven continents, the names of the oceans, lines of longitude, and the major lines of latitude. The Western Hemisphere faces the front. The globe is encircled with a silver rim marked with the degrees of latitude, on which is perched an engraved solid silver eagle with a wingspan of 15 inches. The total weight of the mace is 10 pounds.
The Mace has been in use in the House since 1841 when the Members met in the old House Chamber. It was crafted by William Adams, a New York silversmith. The original mace had been destroyed when the British burned the Capitol in 1814, and during the intervening years, a wooden mace was used.
https://history.house.gov/Collection/Listing/2006/2006-162-000