Hi thanks for writing in...what a beautiful antique gold wedding ring! The clover you mention on the band is the Irish shamrock. The beautiful three-leafed Shamrock that appears to encircle part of the band, is the plant symbol based on clover. In legend and it is said, that St. Patrick once plucked a leaf of it for use in illustrating the doctrine of the trinity.
The shamrock has been revered as sacred, from the time of the Druids. It grew with such vitality that in the meaning of flowers it came to represent life itself. Medieval love poetry continued this association where young couples would meet or make love in clover.
The symbolic meaning of flowers represented emotions and was developed to a high degree during Victorian times. An elaborate language based on flower symbolism was developed.
Regarding the hallmarking, can you tell us, whether the X mark inside the ring is within a circle or an oval shape? Would you happen to have an idea what carat gold it's made from? I would imagine the ring is at least 18 carat gold.