The Lord-Hopkins Collection was discovered in 1923 near the last residence and shop of John Bowen, the lithographer. Consisting of pattern prints and test sheets, this historic collection encompasses all three projects the Audubon family entrusted to Bowen - The Octavo Birds, the Octavo Quadrupeds, and the Imperial Quadrupeds and are a representation of American printmaking history. Some have handwritten instructions from Victor Audubon to Bowen. The pattern prints are colored or partially colored. Test sheets are uncolored. The condition is consistent with well referenced prints. The Octavos are slightly larger than the Octavos we are used to, since they were never trimmed to place in books, but only used in Bowen's shop in Philadelphia. These are truly a fine addition to any Audubon collection. Very reasonably priced.