Steam engine for Henson-Stringfellow model flying machine, designed and constructed by William Samuel Henson and John Frederick Stringfellow, England, 1840-1842 Steam Engine for Henson-Stringfellow Model Flying Machine, 1840-1842
Letters and Postcard from F.J. Stringfellow, as follows:- Letters dated Oct.30 1890; Aug. 11 1897; July 11 1899; Feb.1 1903; March 15 1903; April 5 1903; April 20 1903; Aug.15 1903; postcard dated May 12 (with sketch) 1903; and extract from letter dated May 10 1903 letters from F. J. Stringfellow
