Columbia horn chart
Subtitle: supplement to A Collector's guide to cylinder graphophones
By: Howard Hazelcorn.
Publisher: APM
Published: 1979
Place of publication: [New York, N.Y.]
Language: eng
Number of pages: 10
Subjects: Columbia Graphophone Company (U.S.); Phonograph -- Handbooks, manuals, etc.
Other titles: Graphophone horn-matching chart
Notes: Caption title.