This is a 1901 calculator called “The Calcumeter” with original Stylus.  Machine is in excellent working condition with all tens carry over.  Stylus has been taped do to separation.  One end has pencil and other end metal point for calculator operation.  Stylus could be glued, but might deter from provenance history.  Per Martin Book on Antique Calculators, the Calcumeter originally patented by Michel Baum was made in America during the early 1900s and imported into Germany via Hamburg and sold for about 100 marks.  These were very well made machines of steel with nickel plating, copper and brass (later copies were made of tin or steel like “Lighting”).  History preserves their advertisements that stated: “The Calcumeter is being operated in thousands of the best equipped and largest business office throughout the world………..”.  This is an American, early 1st quarter 20th century, stamped on the end "H.N. MORSE, TRENTON, N.J." and on the side "PAT'D DEC. 17 '01".  Serial # is stamped 18191.  This is an early model as the bottom of machine is stamped “The Calcumeter” and later models were stamped on top.  Later models were stamped “The Standard Desk Calcumeter”.  This is one of the very first models offered and seldom found.  This Calcumeter consists of 6 movable dials.  There are two-swivel legs that stand in the back to angle machine up for use.  Calcumeter’s were the best-made dial calculating machines of the late 1800s.   Machine measures at 7.5 inches long x 2 inches wide.  It is truly a rare 100+ year old treasure that belongs in a museum or with a serious collector.