HI there my fellow fiddlers!

I'm a new member BrassMajor! My english teacher used to be the ConcertMaster of the Christchurch Symphony Orchestra. He owns a Charles Maucotel Violin made in London 1900. There were two Charles Maucotels in Paris and one of them left to London. He wants to sell it late on the year. He was a Dody?Dodel bow copy and some german bow. I'm actually Brass instrument professional in identifying. I do play the cello and violin and many others but yeah first time folks. 

CAN SOMEONE TELL ME THE VALUE OF THIS INSTRUMENT?

Here's a mashup:

Violin Size: 4/4 Full Size

Maker: Charles.Maucotel

{Not C.A.Maucotel Paris NOR Sylesvsrte & Maucotel, P.C.Maucotel}

Made: 1900, London

Bows?: Two expensive German bows

Rare?: I think it is rare I can't find much info on the internet.

Info: Good Playing Condition, used often in Chamber music, my teacher stats it need to be played more often. 

Photos?: He's going to send me the photos this afternoon.

THANKS PLEASE REPLY