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Silver Ship Model Preservation

I am restoring a model of a sailing yacht. With complex rigging etc., keeping it tarnish free is a difficult problem. My plan is to display the model in a glass case filled with nitrogen. I have a plan, sources for parts, and can build such a case. Prior to building it I'm wondering:
1. Has this been done before? Can I benifit from others' experiances.
2. Am I going 90MPH down the wrong road?

Re: Silver Ship Model Preservation

Your idea sounds like it should eliminate tarnish.. An airtight nitrogen environment should prevent sulfides from attacking the silver and create the sulphide tarnish. You might want to be aware of components of any adhesives that may be in use during construction of your airtight glass box. Any suphide/sulphate compounds may outgas and tarnish your ship.

Good luck and let us know how it works.