I have owned one of these coins for many years, the coin in the picture is not mine though.
I have always wondered what the celt who cut the design was thinking.
So here is my Christmas interpretation of the design. The coin was minted at the time of the birth of Christ.
So here goes, in the centre of the coin we see the triple tailed horse with a great big square muzzle and huge ears, my thinking is it's more like a donkey. Sitting on the back of the donkey is the hidden face very small but maybe a baby. Then directly above is the small curved shape, to my thinking this could be a Celtic round house or maybe a stable. On each side of the stable there is a pellet, maybe two people possibly called Mary and Joseph.
Looking over to the left of the coin there are three pellets and under the C of Catti is a tiny star shaped pellet to the east of the three pellets on the left, maybe just maybe the three pellets on the left could be the three wise men following the star just over the stable. Then looking directly under the donkey we see the wheel, the wheel of life as documented in different religions. Maybe the wheel represents that the life of Jesus will go on and on.
Now we come to the reverse of the coin. It is said the Christmas tree was started in the 16th century in Germany by devote Christians. They decorated there trees with candle and apples a sign of undiing life.
Maybe looking at this coin the celts were thinking exactly the same. ?
Happy Christmas all.