I inherited a set of cast iron garden seat armchairs from my 95 year old grandmother a few years ago. She had them in her gardens for at least 60 years (I don’t know where she got them or how old they were when she acquired them). They have a large lyre-back design with scrolled and floral elements. Size: 32″ high, 20.5″ wide, 22″ deep; seat height 16″, depth 17″. Seem to have a few layers of paint (lots of patina on the paint). The one on right side of photo has no damage (is in good condition); however, the one the left has a small piece of the cast iron broken out (if you look at the photo, about 3″ up from seat, on back, next to the lyre, near the right arm you will see the missing piece). Have done some research on the internet; learning that the lyre-back design was unique to America (specifically Pennsylvania fabricated). I would like to sell the set; however, I don’t know where to start (as to listing them) or what to ask for them (value). Can anyone provide me with some insight or direction.