Johnston's chart of the Baltic Sea, German Ocean & English Channel
Printed map. Visual scale [64 mm=150 English miles]. Shows railways and fortified places. Includes 5 inset maps: Revel or Reval, population 15,000; Sveaborg; Cronstadt as in 1853; Port Baltic; and, Enlarged plan of the Gulf of Riga, with the islands of Osel, Dago &c. Includes some textual notes. Includes list of "just published" maps in lower right margin.