Thank you, come to find out it is a 1977 vintage .I prefer the non stainless sights it's easier on the eyes for me, just personal preference.Nice looking and appears to be in great shape. Not one of the earliest ones since the sights are not SS. A good score for sure!
Nothing wrong with the blue sights. The SS front and rear are just something the "collector" in all of us likes, but the blue is actually more functional.