Alois Auer 1853 Title page of Alois Auer "the Polygraphic Apparatus, or, The Different Departments of Art carried on in the Imperial Court and Government Printing-Office in Vienna by Louis Auer" (Vienna: Imperial Court and Government Printing Office, 1853)
Title page Google Books On this book the author is given incorrectly as Louis Auer - it should be Alois Auer.