I've came to conclusion, that the name of the city of Kalisz is just a part of the tune name and has nothing to do with the origin of the record. But the name of the German city Oberhausen from the province of Rheinland (abbreviated Rhld.), repeated two times tells us that the recording factory of Mr. A. Wosik'а (who probably was both: the owner of the factory and the conductor of the orchestra) located in this city. Besides phonograph records, the factory manufactured musical instruments and sold them wholesale and in retail (the writing on bottom part of the label rim tells us about it). Quite possible, that Mr. A. Wosik was the Estonian nationality, that is why he named his company Estonia Record. However, the company produced not only Estonian, but also Polish, and quite possibly German phonograph records. To confirm this hypothesis it would be good to contact collectors from Germany.

If you google Kalisz, you will find that it is one of the oldest cities in Poland, somewhere west of Poznan. Had a large Jewish population before the recent unpleasantness (World War II, that is!!!)

Janus/Minerva matrix 1912/3