I want to know the answer to the following question:
What was the name of the manifesto that Rabbi Jacob Ettlinger produced?
All the background I'm provided with is that "As a group of Reform Rabbis convened in Braunschweig, Rabbi Jacob Ettlinger of Altona published a manifesto entitled "Shlomei Emunei Yisrael" in German and Hebrew, having 177 Rabbis sign on.". Is that enough to answer the question?
Answer: yes