Porter, Dot2023-05-232023-05-232015-08-102015-04-25https://repository.upenn.edu/handle/20.500.14332/46510http://hdl.library.upenn.edu/1017/d/medren/6016920Merchant ships--HistoryWarships--HistoryNaval architecture--HistoryAstronomical instruments--Early works to 1800 DiagramsScrolls (information artifacts)Manuscripts Japanese--18th centuryManuscripts Japanese--19th centuryManuscripts DigitalBook