The high first bolt can be stick-clipped from the ledge to the left, but climbing to it is also safe thanks to the hidden hold on the face to the right of it. The climbing up to it is easy, as is the last bit. Actually, there's only about 6 feet of hard climbing up the crack(s), and this requires very little actual crack skill.

The overhanging bolted crack way back in the corner furthest uphill around the left of Zehnerstein, to the right of Flying Duck.

3 bolts + anchor up top