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The Kuribayashi 35mm still reaches deep into UV, even a bit below 320nm and shows a rather high UV at 365nm transmission of over 80%. However the Kyoei E-Acall f3.5/50mm enlarger lens seems to be quite similar, reaches beyond 320nm too and has a tad above 70% UV transmission at 365nm, so another useful addition to the rather short list of UV capable lenses. It has a different blueish coating, compared to the golden coating the 35mm Kuri has, hence suppressing a bit the blue and UV area.
I will test how it performs as a UV taking lens soon, time permitting.
I have written about those lenses before HERE
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos