Rat cheer! Do remember that this has to do with the value/price the makers name adds. Do remember that makers supplied various Original Qaulity grades. It is an error to try to associate OQ with maker's name.
BRAND VALUE OF MAKERS NAMES
BV1 Makers Names Price Factor = 8
Boss, Holland & Holland, Purdey, and Woodward
BV2 Makers Names Price Factor = 6
Westley Ricahrds, Dickson, Rigby, Grant , Beesley, Powell, Atkin, Churchill, Henry, Lancaster, Evans, Watson, Wilks, Greener, Boswell, Gibbs, and Lang
BV3 Makers Names Price Factor = 4
Rest of the British Trade and top Continental (Bury, LeBeau, Masquelier, Francotte, Brancquart, Le Page, Gastine Renatte, etc.)
BV4 Makers Names Price Factor = 2
Lesser known Continental names or names largely associated with low OQ grades
BV5 Makers Names Price Factor = 1
Unknown names or unnamed
For example, a SLE Purdey BV1) would value at 8 times a unnamed continental (BV5) SLE masterpiece (usually made by a journeyman to prove his mastery of the trade and gain promotion to master status) where both are in equal current condition (CC).
