As a general rule, vintage Harald Petersen guitars from the 1930s and 1940s are the most valuable, and can command prices in the tens of thousands of dollars. Petersen's instruments from the 1950s and 1960s are also highly regarded, and can sell for several thousand dollars.
Some of the factors that can affect the value of a Harald Petersen guitar include:
* Model: Some models, such as the "Harps" and "Harpster" archtops, are more rare and desirable than others.
* Condition: The overall condition of the instrument, including the finish, hardware, and electronics, will impact its value.
* Provenance: A guitar that has been owned or played by a famous musician or celebrity will typically be worth more than a similar guitar that has not.
If you are considering buying or selling a Harald Petersen guitar, it is important to do your research and consult with an expert to determine its value.