By E&P do you mean Etzold & Popitz in Leipzig? The company was founded in 1864.
New2clocks is perfectly correct when he says that many manufacturers bought in their cases, but there were some who made their own. Etzold & Popitz had a case factory in Mühlhausen but it was not opened until around 1906. This would be right on the border of being too late for your clock, which I would have thought was from about 1900, but it could be a little later, in which case it is just possible that it was made in the Etzold & Popitz case factory.
Very few clocks of this era had model names.
PS I got interrupted by the telephone, so new2clocks beat me to it.
Yes, that is the logo of Etzold & Popitz, one of their earlier ones. According to Schmid's 'Lexikon der Deutschen Uhrenindustrie' this logo began to be used around 1890 (Mikrolisk states that it was registered in 1920; it does not look like a 1920s design to me. It is possible that Etzold & Popitz used the logo before actually registering it).
The patent No. 53519 was issued in 1889/90 to Georg Seibel in Darmstadt and concerned a quarter-strike mechanism.