Received the Roman coin (25mm) from a Lebanese friend that said it had been in her family for a long time. The other coin (32mm) looks Byzantine to me and the smaller one I don't know really know. All of these come from Lebanon where I have lived for the past 4 years and visited important historical sites several times, most notably Byblos and Baalbeck. They are memories to me and not for sale, but would still like to receive an expert opinion on whether they are genuine and what the market value could be if the underlying paperwork would be in order
See above
Thank you for submitting your items for appraisal. This appears to be group of coins from the 3rd century and the 11th century. One appears to be a syrian coin, one can barely identify the eagle standing right, wings spread, holding wreath in beak and the inscription ANTIOXIA SC, possibly Philip II,AD 247-249. The small coin might be identified as a bronze Sestertius of Maximinus I Thrax and the third should be a Byzantine coin of the 11th century as you have already figured out. There are chinese reproductions of roman coins around, but usually only the well known names of antiquity are being copied. Such ancient coins are well available today, and condition is an issue here. As always "asking prices" can be much higher.