Dating a martin trumpet
Most were made post World War II possibly up to 1960.
If you see one of these horns and the owner is claiming they are from the 1920s or 1930s or before, then they are using the wrong serial number chart.
A second company called "The Martin Band Instrument Company" was founded in 1904 (some sources claim 1906) by the John Heinrich (by now Henry) Martin and his five sons of John Martin. In 1928, Martin acquired controlling interest in The Indiana Band Instrument Company, which operated as a separate company until 1942, when it moved under the flag of Martin to become the producer of student line instruments, a strong and growing market at that time.
They opened a factory at 431-433 Baldwin Street in Elkhart. In 1912, Francis Compton became controlling partner by buying the company from the Martin family in 1912. The Company was led by Fred Holtz from 1931 until 1948. He stopped me and said, "Let me see who made this horn." Then he said "ah yes, these are mine, the ones I made, not the other guys," (meaning Leblanc).
He then moved to Elkhart, Indiana in 1876 and became the 6th employee of C. Conn Company, where he worked until his health forced him to retire in 1902. Henry Charles Martin, John Henry's oldest son, continued to work for the company until 1923.
I also gathered information for this page from Music website that cites Albert Mensinga as the source for MANY of the serial numbers.
If you happen to have any additional information that would make this chart MORE accurate, please feel free to email me.
According to his great granddaughter, John Heinrich Martin was born on February 24, 1835 in Dresden Germany He learned to make instruments in Germany as an apprentice.
In 1855 he emigrated to the United States, and, in 1865, he moved to Chicago.