- RUDOLPH WURLITZER & Co 1910 page051
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- RUDOLPH WURLITZER & Co 1910 page052
- RUDOLPH WURLITZER & Co 1910 page053
- RUDOLPH WURLITZER & Co 1910 page119 image1
- RUDOLPH WURLITZER & Co 1910 page136 image1
- 2014-2015 Brussels Instruments Museum
- 2014 Jerome Perrod appointed CEO of Buffet Group
- 1953 A History of Band Instrument Manufacturing in Elkhart Indiana
- Undated Grassi Catalog
- 2016 (ca) Selmer Clarinet Catalog
- 2014 and 2017 Coda Music