MIMO Instrument Makers Persons & Final Report.png Bate Collection of SaxophonesThumbnails
The XLS (2013) is like a scaled-down version of the New Langwill's Index and lists almost 4000 manufacturers, starting in 1500.

The PDF talks about which museums are in the MIMO co-op. There are a bunch of links scattered throughout the doc.

*** PDF & XLS ***