Hello guys ! I'm considering to buy this violin labeled "Ch. J. B. Collin-Mézin Luthier á Paris Rue du Faub Poissonnière No. 29" for a very good price. The seller said he couldn't see any hand written signature or date....Maybe the violin is dusted or he just don''t where to look, I dunno..... He said the violin is made around 1900 and length of back is 359mm. Next week I''m going to see the violin and I will try it, but I will be very grateful if you guys give your opinion about this violin''s authenticity . P.S. I'm sorry about the bad pictures, but this is what he send to me.