Lion Facing left

by Michelle
(Eugene, Oregon)

Not sure if I'm asking the right place or not.... I have plain a gold band, 1/4 inch thick. This was my grandmothers, but I don't know where she got it. The marking inside the band "appears" to be stamped as follows: Three letters in all caps "GCB" (or "GGB" or "CCB", hard to tell), next to that is what I think is a "lion" facing left, next to that is "1X", next to that is a "crown", next to that is hard to tell but looks like maybe a "leaf", not sure on that one. I am just wondering what these mean and maybe how old the ring is.