Belgium browning light 12?

Without any more information, you question is almost impossible to answer with any real degree of accuracy. Value will depend on where you live, how bad you want to sell it, condition, finish, accessories, box, papers, engraving, what choke it is, barrel length, detailed description of all markings, stock wood, etc.. You could be in the 100-1000 USD or more range.

Thank you. Obtaining more information regarding some of my guns. I do not wish to sell hardly any of them but I wouldn't ever rule it out. Only one I will not sell is the LC Smith 12 gauge my grandfather handed down to me.