If you want to clean it up, take the rifle out of the stock, strip the parts off and spray it all down with Easy Off Oven Cleaner in the bathtub. Get into the breech threads with a tooth brush and get all the crap out of there. Let soak for 20-30 minutes, wash off with very hot water, blow off with compressed air if available and finish with hair dryer, heat gun, whatever. Spray down with your favourite gun treatment (G96?), reassemble and wipe down. Wear eye protection, caustic soda in your eyes is not nice.
The bolt should be stripped and cleaned the same way, and I recommend you get some "Superlube" which is a teflon based grease and lubricate the inside of the bolt with that. You'll notice a big difference in the smoothness and ease of operation after you do this.
You will destroy a lot of the collector value if you strip the stock, don't do it. Just wipe down with a bit of Windex or Green Power or something on a rag to get the dirt off, follow with just a wet rag, let dry for a day, then rub in some boiled, not raw, linseed oil, and not too much as it takes a long time to dry if you over do it.
As has been said, the 1910-E is not a common rifle in any condition. Don't treat it like a sporterized milsurp, it isn't one. If the barrel is not excellent and you want a Ross rifle for hunting or plinking, I have a cut down milsurp here with an excellent barrel we could deal for.