It is a domestic trademark. On the sidelines, there is an international brand called Calvin Klein, abbreviated as ck. The trademark you asked about was obviously registered on the sidelines, and was abbreviated as ck. If my guess is correct, the one you consulted should also specialize in leather goods, bags and the like. In this way, it can be called ck wallet. Those who didn’t know it thought it was the international famous brand Calvin Klein, ck wallet, haha.