Help! How do I preserve this?

[mile-ender]

First off, I gotta say, I love this site!
Through reading the various posts all around, I've picked up so many tips and learned so many things. New ways of seeing my environment.
Making a long story short, I've managed to recover this Cointreau bottle (I'm guessing 1910-1920?) from a foundation. My problem is, I don't know what to do to restore/clean, preserve it. The paper label is brittle and almost powder, and I really believe I should preserve it somehow. What do I do

 

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Gonna be hard to anything to save it, maybe a clear lacquer in a spray can from home depot.....anything you try to wipe on will most likely remove it.....Jim