August Wilhelmj - A Modern School for the Violin
The text and title of this method talk about six books, yet I can only find two online. There aren't even any references to be found to the other 4 or a place to buy them. Am I missing something?
Actually, I managed to find exactly 1 place to buy each of 3 and 4... not 5 and 6 though. Why is this so exceedingly rare compared to Sevcik? To me this seems a really concise book of warm up exercises for amateur violinist at least.
Just sold a Markneukirchen trade bow stamped Wilhelmj, his name was used by at least one outfit.