This is a 1905 Omega Calculator made in Munich Germany.  They made this machine for 3 years.  A handful of prototypes were made in 1903 and considered the Holy Grail of calculators.  In 1904 thru 1906 manufacturing / distribution began and offered this high tech computer machine in Europe.  This amazing machine was designed to be a four, 4 function machine to Add, Subtract, Multiply and Divide.  The Omega was a high-class advanced design that used the USA Locke Adder design as a base with increased functions using some designs found only in Napier Bones and Abacus.  It was designed by Justin Bamberger and he received many prize decorations by “Jugendstil Movement” (German Renaissance Group announcing new advancements in Design).  The machine has some tin indentations but still in very good operation.  The rare machine reads Omega Calculating Machine; D.R.G.M with serial number 195509.  Size is 18” x 6” x 2.5” and weighs 5 pounds.  This is a priceless museum piece that belongs only with very serious collectors.