"Lineco Transparent Mending Tissue" as the best available product in
the USA for repairing rolls. It comes in two sizes which can be easily
cut into narrow strips. It is a bit tricky to use but it is acid free,
can be removed if needed, does not pucker, and is so thin it does not
add bulk to the paper to unbalance rolls once re-spooled.

Adam Aceto
Los Angeles
tel.: 1-818-239-6814