Freshening bellows papers?

[malcolmbebb]

I'd like to freshen up the bellows papers on a Lachenal tutor concertina. Just a bit grubby, with a couple of glue marks.
I'm thinking of using a damp sponge.
But thought I'd check first to see if there is a better way. Any suggestions?
Thanks!

Edited August 15, 2024 by malcolmbebb

[d.elliott]

Bellows glues are not waterproof and the printing on the old papers can easily rub off with a damp cloth or sponge.

[Theo]

Better to just enjoy playing it as it is.  As Dave says glues are water based and printed patterns are not waterproof. Brush off any loose dust with a soft dry brush and leave it at that.

[malcolmbebb]

Thank you gentlemen.