Dear Jonathan,

Thank you for contacting Mearto with your appraisal inquiry. My sincere apologies for the delay with the appraisal.

The presented object appears to be a set of three prints of maps with two are 13" x 15" and the larger one is 14.5" x 17" measurements. The artwork depicts maps of Great Britain, Wiltshire, and Gloucestershire. All these maps were published in the first half of the 19th century.
Comparable objects were recently offered and sold on the international auction market.
This piece is in good condition and no severe damage is visible in the images provided.
A fair market estimation would be between 40 to 80 USD each.
This estimate is based on recent recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.

With kind regards,
Gregory