I'm shooting for the longest thread title. Google Translate: "Typology of wind instruments with their production notes." I came across this website a looooong time ago and I don't seem to have referenced it here or on SOTW. Website: http://jeanluc.matte.free.fr/articles/typologie/typologie.htm. It essentially is what it says on the tin, but if you search the page I linked to for "Les pages d'illustrations secondaires," you'll get a list of catalogs and other advertising stuff. Most of the catalogs are English, French, or German. (Helen, there's a 1939 Meinel & Herold Klingenthal catalog, which has a bass sax listed.) Enjoy!