Title: Alto valve trombone in E-flat
Object type: Alto valve trombone in E-flat
Date: mid-19th century
Culture: American
Artist:  August Pollmann 
Artist nationality: American
Artist role: Maker
Medium: Brass, nickel, silver
Classification: Aerophone-Lip Vibrated-trumpet / trombone
Credit line: The Crosby Brown Collection of Musical Instruments, 1889
Geography:  New York New York  United States      
Department: Musical Instruments
Repository: Metropolitan Museum of Art, New York, NY