It was from Moon's 1968–1970 – Champagne Silver kit.
A portion of this kit sold through Sotheby’s London on 22 Aug., 1991, for £7,000 (about $16,000). This same five-piece portion was then resold via Christie’s auction house 29 Sept. 2004 as part of its Pop Memorabilia sale in South Kensington, London. The estimate was £10,000-£15,000. The lot sold for £120,000 (approximately $215,772; $260,500 including fees) to an American collector. It was used on Live at Leeds.
A lot of great drumming on that album.