Morgan's library was completed in 1906 for $1.2 million (equivalent to $ million in ). The "Wall Street Journal" reported in June 1906, when the library was near completion, that Morgan had "wanted the most perfect structure that human hands could erect and was willing to pay whatever it cost". For example, the usage of dry masonry marble blocks, an uncommon construction method, added $50,000 to the cost of construction. Morgan was impressed with the quality of the work, as McKim would recall in a February 1906 letter to his colleague, Stanford White; even so, Morgan often upheld the library as an accomplishment of McKim's. The year of the library's completion, the "Real Estate Record and Guide" wrote of McKim, Mead & White: "the new Morgan Library, in Thirty-sixth street, is among their most carefully studied designs." The library building was described in another publication as "one of the Seven Wonders of the Edwardian World". A correspondent for the London "Times", in 1908. characterized John Pierpont Morgan as "probably the greatest collector of things splendid and beautiful and rare who has ever lived".