Face lift for the P-4 as well

I did the same thing, sponge chipping, on the P-4 as I had done on the T-26. I think I've improved my technique a little already. Looking forward to my next vehicle, probably the Hanomag Joakim gave me last gaming session, thank you Jocke.
I would now consider it ready to go shoot up Daniels T-34s in Kharkov.