Vintage Irish Enamel sign from late 1800's

Came across this rare old large Richardson and Fletcher Dublin manures & Fertiliser sign last year that had been used as a dividing fence on a local property for several decades and rescued it as best I could.. from what i can gather it was a Dublin based company in ringsend docks that apparently was damaged by fire during the easter rising in 1916 according to claims submitted in the archives..(see last picture)
Has been secured to a solid wooden backing with an added oak frame to make it a bit more presentable.. rare find, have never seen another nor can i find any history of any similar signs from this company.. if it was in perfect condition the price would be €1000+ but in the current condition the asking price is €395

Won't entertain any low offers as its a one of a kind huge rare old Irish sign that will remain on display in my shop if not sold for asking price