in country towns. In Sydney, these rare examples of Blacket's early Palazzo style architecture, all constructed from the local yellow Sydney sandstone were all demolished in the period from 1965–80, to make way for taller buildings. From the 1850s, a number of buildings were designed that expand the Palazzo style with its rustications, rows of windows, and large cornice, over very long buildings such as Grosvenor Terrace in Glasgow (1855) by J. T. Rochead and Watts Warehouse (Britannia House), Manchester, (1856) by Travis and Magnall, a "virtuoso performance" in Palazzo design. From the 1870s, many city buildings were designed to resemble Venetian rather than Florentine palazzi, and were more ornately decorated, often having arcaded loggias at street level, like James Barnet's General Post Office Building in Sydney, (1866 and 1880s). The Palazzo style was extremely popular in Manchester in the United Kingdom, particularly the work of Edward Walters, whose finest Palazzo works include the Free Trade Hall (1853) and 38 and 42 Mosley Street (1862). The Palazzo style found wider application in the late 19th century when it was adapted for retail and commercial buildings. Henry Hobson Richardson designed a number of buildings using the Palazzo form but remarkable for employing the Italian Romanesque rather than Renaissance style. The largest and best known of such works was Marshall Field's Wholesale Store in Chicago (1885, demolished 1930) which, with its large windows set into arcades demonstrates the direction that commercial architecture was to take, in the replacement of structural outer walls with screen walls protecting an inner structural core. Only one of Richardson's palazzo style commercial buildings remains intact, the Hayden Building in Boston. The American architect Louis Sullivan pioneered steel-frame construction, meaning that both the floors and outer walls of a building were supported by an internal steel frame, rather than the structure of the walls. This technological development permitted the construction of much taller habitable buildings than was previously possible. Sullivan's Prudential (Guaranty) Building in Buffalo and the Wainwright Building in St. Louis demonstrate the application of the Palazzo style to tall structures, which maintain the Renaissance features of a cornice and differentiated basement but which have its cliff-like walls composed mainly of glass, the rows of windows separated by vertical bands, which also define corners of the building, giving a similar effect to quoins. Early 20th century Palazzo style architecture remained common for large department stores through the