Preserving a Rusting Enamel Pot

[romeo-1]

I was wondering if there was anything I should or could do to keep this pot from further rusting. Keep it out of moisture, I know but should I coat it with anything? While there may not be a high monetary value attached to this piece there may be some historic value. Thanks for the suggestions.

 

[Catobra]

Sorry, can't help you, but really cool find! Why historical value?

 

[romeo-1]

It may have belonged to someone quite well known but I'm still researching.