art

Artworks are very difficult to appraise online. It's best to take them to a fine art gallery for examination.

I am familiar with the items presented, most likely what you have are offset lithographs. These were mass produced so not much in value, though they are nicely framed.

Here is a little information about the artist, Pieter Casteels III, publisher Robert Furber and engraver, Henry Fletcher, and benefactor, John Custis IV. The original hand colored engravings and other engravings can be viewed at Colonial Williamsburg, Virginia and in private collections (mostly in the United Kingdom).