Artificial collection of model shipbuilding notes from various sources. Includes ship plans, correspondence, and miscellaneous notes. One volume includes excerpts of correspondence between Stephen C. Rowan and Howard Irving Chapelle and between Rowan and M. V. Brewington (folder 4). Letters discuss ship dimensions of various types of schooners. Second volume provides drawings and dimensions of sail riggings (folder 5). Third volume includes notes for two ships - John H. Orr and Lydia E. Middleton (folder 1).