belgium browning special steel 12

Question
I have a Belgium made special steel 12 gauge 3" Magnum with etching, ribbed barrel & in excellent condition. There are other markings on the receiver end of barrel, was wanting to see value & what these markings are

Answer
For an in depth overview of what everything is on your shotgun, I suggest that you find the Browning Auto-5 book by H.M. Shirley and Anthony Vanderlinden. As far as value, it all depends on condition and originality. The Blue Book of Gun Values is a starting point for values. Hope this helps.