1/2 Plate-Lady with folding glasses

I am not sure if this is an American or English 1/2 plate, however, the size is not typical of a U.S. plate. The older woman wears an awesome pair of folding spectacles; my guess is they are an early type of bifocal lenses. Needless to say, this woman of wealth wears a beautiful shawl & typical bonnet from the period. A rare mat and enclosed in a fantastic 1/2 leather, 1/2 velvet push button case with incredible red velvet pad. A beautiful packaged dag, the image contains several abrasions. $265