I bought a fiddle from a junk shop for £40 with a soundpost crack. The only label read "Medio Fine". I had it repaired and played it for years before trading it in with some basket - cases for the current one. I was told that it was a French factory - made job from the Lame factory (I could have got that wrong) dating from the turn of the century. It had a one - piece back, inscribed purfling and an ebonised fingerboard. Repaired, it had a value of about £500. In your position I think would keep both.