Thanks.
If you can't tell if it is a good violin, why would you want a different
instrument?
If you plan to start playing, give it a try, give it a chance to break
in and make a decision after a year. Not all violins sound good until
they have been played. Nobody can tell you if it is worth keeping
without hearing or playing the instrument.
Suppose Lorenz is regarded as mediocre, you could still have a good
instrument. If his work is regarded as great that doesn't mean you have
a good example of his output.
Play it and between you and a teacher, decide if you like.
Pete
"Violator" Mike