Offered is an original 1786 manuscript cyphering book handwritten by Johanna Bergen of Brooklyn New York. [Johanna was an 18th Century descendent of Hans Hansen Bergen one of the earliest settlers of the New Amsterdam Dutch colony. The Bergen family name is famous throughout Brooklyn, New York and Hans boasts his own Wikipedia entry.] The 13.5 x 12 inch book contains 41 pages filled with such topics as Simple Addition, Subtraction, Multiplication, and Division, Money of the United States, Simple Reduction, English Money, Apothecaries Weight, Long Measure, Land Measure, Liquid Measure, Dry Meas... View More...