There is a very good guide written by Greyman2. However, there is one other total giveaway as to whether the sword is valuable or not. In the making of the sword, after the folding and shaping, the whole thing...
As of the 6th April 2008 the Government introduced an amendment to the Criminal Justice 1988 Act which resulted in some samurai swords being added to the Offensive Weapons list, effectively banning them. This...