Thanks for posting additional information , mafreche .
If you have not done so yet , I'd suggest that you have a high-quality digital scan (photographic) done on the front & back of your item (with a couple of back-up discs too) .
As I mentioned in an earlier post , it's easy to have translation performed by experts ( it's not always quick or simple , though ) .
Have you consulted with folks in the Middle-East , or others in the U.S. that you didn't mention in your post ?
My big question is really about what your primary intent is with your item ... seems like it's multi-faceted , from what I've read so far .
I do understand that long-term costs can be a concern (insurance , proper storage etc.) ... BTW , is it's value , according to your insurance Co. , enough to cover your investment in the event of a loss (another big consideration) ?