Did you look at the library of congress collection of images? THere are literally thousands of images like the one posted by navydoc, only they are real period negatives and prints with real aging and artifacting. You can sample portions of these defects and use them as overlaid layers to transfer the defects to your image. The civil war collection alone will give you everything you need. Best of all, it's free and they typically have hi-resolution TIFFs for download. There's no need for three pages of a thread on this one and there is no golden secret. If you are trying to replicate a specific look, find reference examples and use them.
Kirk
I just looked at a few pictures, they are great examples. Thank you!
If you do an internet search for adding scratches to a photo in photoshop you will find lots of tutorials that will achieve your desired end result. Here is one such result
Google is my friend trust me. I have looked at tutorials and read plenty of info from all around and really did not come across anything I thought was substantial so I decided to try the forum to see what everyone was doing to achieve their looks. Thank you for your input it much appreciated.
edit: paxtonprints was one of the first places I went to and I had downloaded his texture package.


