The Columbia Music Typewriter was an index writing machine for musical notation invented by Charles Spiro, ca.1885. This was the same Charles Spiro that invented the Columbia Index and Bar-Lock typewriters, among others. Spiro's music typewriter would have been manufactured by the Columbia Type-Writer Company of New York, NY.
Click here to see a flyer mentioning the Columbia Music Typewriter.
Click here to see a testimonials flyer with the music typewriter mentioned, though only in the heading.