Wow those are nice guns, great find!
Something magical about finding a gun marked in a manner they will never be marked that way ever again - isn't it?

Here is a great article on SN's - when they could use and when they had to stop the use of Made in W.Germany

And although I've posted a purchase thread late in 2017, here is the P220 European mag release Made in W.Germany I purchased - found that it was made in West Germany while I was stationed there in the U.S. Army.