Alexander Grune violin maker

[luthier]

Does anyone have any information on this maker? I have one of his violins dated 1980, and there is currently one for sale on the internet dated 1930. He isn't listed in Jalovec. The name is German. (I don't know how to place the umlaut over the u on my keyboard). 

The label reads:   Alexander Grune

                                     Salzburg 

                                fecit ano 1980

the add I had a link to previously has been deleted, probably sold...edited 4/6/19

 

Thanks

[Violadamore]

I know of Erwin von Grüner the guitarmaker (who also made some violins), but Alexander Grüne I don't.  As the link to the 1930 labeled violin you posted gives a making location of Salzburg, perhaps Jacob S. has heard of him.