Dear David,
Many thanks for your email. I'm afraid the Thor bu entry is not independent evidence, because the blog was mine.
There are many interesting details you provide, but I'm afraid it will bore our audience. It would be fantastic if you could find the way to digitise the microfilm (I had a very simple scanner to do this at some point, the only drawback was that the film had to be cut into strips of 5 frames).
In the meantime I wrote to the Unesco secretary, let's see how this "Memory of the World" initiative can help people who are actually interested in what that 'memory' has to say.
Once again, many thanks, and best wishes,
Peter