Is it a pump, bolt, over/under or semi-auto?
The sn doesn't make sense according to Browning's table at http://www.browning.com/customerservice/dategun/detail.asp?id=13 My guess would be it was made in 75. Value range 200-500 the 75v means it is a 75 year model and the v means that it is a magnum 12 gauge . As for the value there is no way to value the gun without visually seeing the gun because of numerous factors like the grade of the gun, if the barrel and receiver are matching and condition of the gun but the 200-500 value range sounds like a good general price without any additional info.The 75V means that you have a Browning auto 5 Magnum chambered shotgun that was made in the year 1975.
Mickey - 2004 is rated/received certificates of: USA:PG (certificate #39746)
1 year - apex