older paintings

Need some information on this really old painting. The writing on the back states "Prepared Academy Board. Winsor & Newton Limited Manufacturing Artists Colourman, by special appointment to her Majesty. And to their Royal Highness the Prince and Princess of Wales. Rathbone place London W. The...

Hi, I'm a new painter and I think I made a big "beginner" mistake. I painted two pictures for my relatives who chose to hang them over their wood burning fireplaces. One has been hanging a year and the other is yet to be hung but it is about 6 months old. Neither were varnished. Is it too...