I'd suggest that all these marks are pretty well academic. The only marks you need to concern yourself with is whether or not the rifle serial number is on the back of the bolt. The actual setting up of a No1 or 4 rifle bolt is a rather complicated/tricky operation and you'd do well to read up an article that was written about it on this forum.

I'd suggest that you get the bolt properly fitted up and then properly fitted to your rifle including the correct CHS. As an amateur myself, but having fitted a few, unless you are experienced, you could be going down a rocky road......................