1843 Cover with Limerick MX

1843 Entire Letter to London franked with 1841 1d red NF from Plate XXII with single NE break, four margins wide to just clear, neatly tied by an almost complete strike of the distinctive Limerick Maltese Cross in black, clearly identifiable.  Reverse with Limerick "E" double-arc in black, red Dublin diamond transit and London red "S" arrival in red.
Very clean and without filing folds.