26th, preserved according to Royal ontatio museum, has tax water marks, announces the birth of the Prince, Boston Tea party as current events and the eruption of mount Vesuvius, any Idea what they may be worth?
Date is 1774
You will want to consult an expert. I suggest an antiquities appraiser in your area. You can consult pbs.org for the experts they use on Antiques Roadshow; at the site they list the names of all the experts they use. You'll want an expert in historical documents. Alternatively, you can consult a museum or an auction house. If you agree to lend the works to a museum, they will probably tell you how much they would insure them for.
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