howdy , post a pic we would luv to see your colt & grips, rj
some of the bluing has faded. but there is no rust. not sure what "pitting" means. there is also some pretty intense scratches just above the grip. I like to think my grandfather was cornered and a "scuffle" ensued. but he probably dropped it.Your gun is early 50's or late 40's vintage because of the dual tone finish. It was common for guns of this era to have the plastic "coltwood" stocks replaced. As that is what was most likely supplied originally with this official police. Better pics are needed but if everything functions well and it has little pitting it is worth $450 or more as the stocks on the gun will probably be sold separately to realize a profit.