Thread: Proof marks on a P14

So I have a Remington (RE *) 1917 built P14.
Its got that many marks on the receiver they ended up putting the Proof stamps on the muzzle end!

I know what a few of the marks mean but if someone can identify them all that would be awesome. I have probably mentioned it before but it has another serial type number on the right hand ear ( this was normally only done to rifles that would be scoped, and ONLY ever done to Winchesters of course)

Of most interest to me is what the CVA means on the right of the first pic and what the stamp in the left top of the picture with the C in it means, of course the ear stamp is a curious factor as well and doesnt look to be done at the build time but later at an armory?