I love the old small towns and the old buildings. Seeing those pictures of your's reminded me of a trip I made to the University of Notre Dame in Indiana, all the original buildings there were built with bricks that were made from a clay pit on the property that had a yellow tint to the clay. The clay never left the site, the had a kiln right there where the bricks were molded and fired. Then taken directly to the building that was under construction and placed.
Those buildings in Florence have that same sort of tint to me from my memory.
Thanks for sharing and sparking a memory.