Otto R. Trefz, Jr. & Co. Philadelphia
name: label: Collection Creator
content: Everett Piano Company
label: Collection Creator
content: Hammacher, Schlemmer & Company
label: Collection Creator
content: Chickering & Sons Piano Company
label: Collection Creator
content: Pratt, Read and Company
label: Collection Creator
content: Wood & Brooks Company
label: Collection Creator
content: Otto R. Trefz, Jr., & Company
label: Collection Creator
content: Piano Parts Mfg. Co.
label: Collection Creator
content: Lynn & Healy Company
label: Collection Creator
content: Lang, C. H., & Company
label: Collection Collector
content: Lenz, William J. (piano technician)
label: Collection Creator
content: Wurlitzer Company
setName: label: See more items in
content: William J. Lenz Piano Tuning Collection
label: See more items in
content: William J. Lenz Piano Tuning Collection / Series 4: Maufacturers and Distributors of Parts, Supplies and Tools
unitdate: label: Date
content: undated
container: label: Container
content: Box 1, Folder 14
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials