"For the past twelve years, Rabbi Rallis Wiesenthal has been laboring on the holy task of preparing a German Rite Nusaḥ Ashkenaz siddur, in Memory Of The Bad Homburg Kehilloh (1335-1942). Recently completed with help from Machon Moreshes Ashkenaz and K’hal Adas Yeshurun-Jerusalem (KAYJ), Rabbi Wiesenthal describes the history of the Siddur Bnei Ashkenaz:" (from the Open Siddur Project)
City of Bad Hamburg
You see from the map that this city is not to be confused with Hamburg in the North, the city where R' Hirsch was born. The"bad" in Bad Hamberg refers to the baths for which it is famous.
This siddur is organized in Nusach Ashkenaz fashion so that for example birchos hatorah follows birchas haschachar and preceds korbanos. It also contains myriad excellent instructions such as that not to say Vayomer Dovid el Gad before nafillas apayim. Since the Hirsch Siddur contains some nusach polim elements (due to the printer trying to attract Eastern European tradition audiences-which is understandable) this Siddur helps one to reconstruct the authentic Asheknaz tradition. You can order it online.