The 1976 Sannow Sport needed some changes, they're all in the finished product below, but take a moment to squint at the brake barrel adjusters and at the top of the down tube. You'll see on the top down tube a swath of missing paint, that due to the all metal First Generation Dura Ace brake adjustment barrel with lovely paint removing cross hatching, squint and you will see the later Dura Ace rubber O ring brake adjusters ending this source or frame damage.
The King is dead, actually put away in the Sannow Sport parts box:
Long live the new King: