Andreas Koch started producing harmonicas in 1867, and continued until Hohner bought out the company in 1928. This antique Chromatic Harmonica has the button-activated sliding bar. When this is pressed , it raises each note a half step. There are 10 blow holes, but the sliding bar makes it capable of playing all 12 notes of the Chromatic scale. It's made of stainless steel, and the wood is pear wood. It's engraved on one side with the Koch emblem, and "KOCH-HARMONICA, Made in Germany, and the key of "C". The other side has "Chromatic, Koch Harmonica, Made in Germany. It measures 5 inches long, 1 & 5/8 inches wide, and 1 inch deep.
Comes with it's original box, which is in less then perfect condition. The inside sticker reads "Koch-Harmonica, Made in Germany, with the "Gemse mark, and "Jamaica, Philagelphia1876, Wien 1837, Stuttgart 1881,Chicago 1893, London 1891.
The original cover on the outside of the box is missing. A beautiful, clear sound comes from this exceptional harmonica.