My guess is that you're trying to figure out the heavily abbreviated Latin phrase that looks something like D. G. Reg. F.D. It's part of a larger motto that appears in various forms on all British Coins.
If you're interested in the coin's value, please post a new question with its date and denomination. Note that British coins dated 1971 and later are current issues and are almost all worth only face value.
Saint Columba was known as one of the twelve apostles of Ireland and is also called the Apostle of Scotland. He is credited with spreading Christianity in Scotland and establishing the famous monastery on the island of Iona.
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it come from united kingdom
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What country does the word walkabout come from
the country
Urban legends can come from any country.
"come to your country" = venir dans ton pays