Its A.M.S. ; L991 and Series (Standard map series designation system) ; L991.
Description:
"Contour interval 10 meters.", "Place names are transcribed according to the modified Hepburn (Romaji) system.", "Polyconic projection.", In upper margin: Formosa city plans., Includes "Glossary.", Insets: Index to boundaries.--Coverage diagram., and Military grid.