Plum M1 Finish?

[browningautorifle]

A plum park job would be a home job as opposed to any arsenal job then?

So...looking at the better pic, I am sure this is blue over a stripped receiver. Not a very good job of either. You should bead blast before finish to make sure your coverage and finish are even. That one looks like a liquid strip was used, maybe muriatic acid or even simple like lemon juice or original Coke... The into the bluing. There's no crystalline structure like Parkerizing. If they'd used a good strong solution at correct heat and time it would still be blue. Even if you parkerize poorly and it rusts, it won't come out like that. It comes out rusty.

I'd send it off to a guy to bead blast and grey park...