I came across a fork that my grandfather found years ago. I was wondering how to clean it?

Question

I would also like to know where I could find out how old it is, and what the initials mean on the back. I have included a few photos. Thanks in advance:)

http://i287.photobucket.com/albums/ll144/neg7729/pictures558.jpg

http://i287.photobucket.com/albums/ll144/neg7729/pictures556.jpg

http://i287.photobucket.com/albums/ll144/neg7729/pictures555.jpg

Answer 1

Before you go cleaning it, make sure that collectors of this stuff would not prefer the old corroded look that it has already.