For a week and a half, each day I spent many hours restoring/repairing and merging an 1884 Carroll County map that I downloaded in 4 sections from the Library of Congress.
I spent countless hours cloning nearby areas to clean up marks, spots, and scratches and also over-exposed parts of the map and redrew/darkened many of the letters and numbers.
I initially adjusted the brightness/contrast and over-all color of each of the 4 sections of the map and then tweaked it some more when I started to merge each section into one map.
This was by far my most tedious and challenging restoration project to date.
Here is the top left quarter and the final product for comparison along with the complete map and a zoomed in section so you can see the quality/resolution I was able to attain.