contrabass clarinet

I'm looking for any and all vintage Leblanc sales catalogues, ads, pricelists, posters, reviews, articles, etc., specifically from the 1930s-1970s, but I'll also gladly take more recent things too. If anyone has any pdfs, links, or hard copy I'd be very grateful to know about it either here or...

Our wind ensemble, the San Jose Wind Symphony recorded a few pieces for an audition DVD*, and posted them on YouTube: Nobles of the Mystic Shrine; and La Forza del Destino You can see me in the first clip at around 1:30, playing contrabass clarinet (bass clarinet in the second clip). Enjoy...