Those lugs actually look like late 70's early 80's Phonics lugs to be honest. Those are the same lugs I have on my early 80's Phonics kit. Unless my kit was a Frankenkit, which by the discoloration around the lugs when I cleaned it, I highly doubt it.
Yes, they're basically the same lugs as the Phonics from later. But my kit's a Champion kit--six ply Beech with only the outer ply Rosewood, "Made in West Germany" sticker below the badge, fully rounded bearing edges ...
You can see Sonor lug/badge details here:
http://www.sonormuseum.com/identify/indentify.html
The Action and Swinger lugs are the rounded ones like those in the original thread kit.