Had this note originally and inadvertently gave it to Elos in the Dwarven Village prematurely. Unfortunately, he took if and now I do not have this note to show to the head guy in the Dwarven Halls. This supposedly triggers the quest for the breastplate from Sir Patrick and leads to Grisom and Kelp Dunatrim being involved. So, no breastplate, no breastplate of Dragon Heart, and no helmet from Dunatrim. Would love to see a method of getting this note back into my inventory via a less convoluted method as that I had used in my last game to recoup an item for the Holy Armor (Nobleman's items). However, I will try this method again if I have to - or proceed without the Dragon Armor and head into the Wasteland without it.
