Do you mean photo no. 22? It is a typ S 2 boat without Staukörper. The Lürssen export boats were also without Staukörper (photo no. 23)
Photo no. 24 clearly shows the two wheels that were used to adjust the Staukörper.
Photo no. 25 is a typ S 151 boat, built in Holland at the Gusto ship yard. They all had Staukörper.
The other boats under construction on page 8 are typ S 38 boat, all with Staukörper.