I second getting a conservator to look it over. For basic storage, it is best to lay it flat if you can and enclose it in something breathable (Silk can get dry-rot). We use Tyvex type 14R for direct contact with a lot of our collection including silk pieces.
Congrats on the acquisition, sounds exciting.
-Allen
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Allen West
Senior Project Technician
The Fabric Workshop and Museum
Philadelphia PA
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