Some questions about a bass

[Fernando González]

Thanks Ken!!!

What is about shorten the string lengt one or two cm? Probably moving the bridge could be enough.

Here in Spain you can´t see a lot of good basses. I mean REALLY good basses, so I´ll to learn to identify then by photos or books. I´m very interested on it.
Sometime I read in double bassist that a good orquestra brought good basses for the players. In Spain most orquestras have new instruments, Poellmann, Nogaro, Gruenert and so, but never you can see an old italian bass.

Regards,

Fernando.