Madame Tussauds entity ceased to exist. On 17 July 2007, as part of the financing for the Tussauds deal, Merlin sold the freehold of Madame Tussauds to private investor Nick Leslau and his investment firm Prestbury under a sale and leaseback agreement. Although the attraction sites are owned by Prestbury, they are operated by Merlin based on a renewable 35-year lease. Madame Tussaud's wax museum became a major tourist attraction in London, incorporating (until 2010) the London Planetarium in its west wing and a large animated dark ride, "The Spirit of London", opened in 1993. Today's wax figures at Tussauds include historical
RD-0109 send useful payloads to those high energy destinations. This fourth stage was called Block-E, and its development started during 1958. Korolev's OKB-1 design bureau initially competed two projects for the Block-E propulsion: 8K72, using the S.A. Kosberg's OKB-154 RD-0105, and the 8K73, using Glushko's OKB-456 RD-109 engine. Due to the complication of developing that latter, Kosberg got the contract. Since the February 20, 1958 order of development, it took nine months to develop the engine. It was done by using RD-0102 assemblies and combustion chamber. Fifty eight static tests were conducted with 27 engines. Between 1959 and 1960 the engine