I imagine that many paper suppliers ought to be able
to provide tape on a custom basis, given a
sufficiently large order, but I was led to believe
that the specs for such tape as laid out in the
relevant standards were a bit difficult to fulfil,
particularly for oiled tape.
I would think that it should not be too impossible to make your own if the
supply gets really short. It may take fair amount of tweaking, but making
a pair of rolling shears (sort of like a continous sheet metal nibbler,
done with three wheels) set at whatever width you want, is reasonable.
Certainly you can get paper that is damn close to the old stuff - probably
better, now that paper is getting more acid-free. And these days, I would
use a modern silicone oil. In fact, I would think something like the oil
used on Epson copy machines would be ideal.
Making a folder might be tough, as every paper folder I have seen really
does not like a continuous stream of paper.
I still have a bunch of 1 inch tape on rolls, if anyone is interested.
aw288 at osfn.org