Thanks for all the info.
Went to the range and fired the gun last thursday.
I believe it is a 1969 gun, but almost it looks like new. It shoots wonderful. My 10 shot groups are about half those I shoot with my USP, same as those with the USP match 45. The balance of the gun is much better then any polymer gun I fired so far and it just points naturally. Very nice trigger, very light recoil. I bought it and now the paperwork get's started (can take up to 4 months around here).
As soon as i take possession, i'l post a full range report with pictures.