I have the same coin and can't find a true identification!
I Have A 1741 Coin. Has No Text Other Than Date On Right Of King's Head Bust And Some Illegible Text To The Left And On Reverse Is A Ship. Also, The Trim Is Ornate. Can You Any One Wanta Give It A Guess? Have Looked And Looked At Several Coin Id Sites.
It is or may be known as a kings coin