1808 EL with very fine "Mermaid" no code

1808 Entire Letter sent within Dublin, re-addressed from Abbey Street to Summerhill and manuscript "4" in black, reverse with a very fine "Mermaid" in orange-red without code letter, F/K 23, virtually complete and well detailed. A closed flap tear is well clear of the "Mermaid". This was the first year of use of the "Mermaids".