Some help from those who know ... I am interested in a sxs, hammer,16ga,looks all ori but no blue..... silver barrels in photo and the owner does not know if lam, twist, dam...all types or fluid steel, the photos are not clear to see if pattern and owner thinks steel but does not know for sure 2,000 miles apart ...... on the top of bar is "Nik Szailer Comp Wien" and I saw somewhere on site a ref to a twist barrel book ..... I assumed the Nik Szailer Comp Wien may have something to do with twist bar.... etc ? ... when I tried to translate it was more like a ad quality made in Vien...... could they be steel? ... can you hold them and tap with hammer to tell diff....... tks in advance ...... ps he is asking $899.00 how to know value? (books, study) ..... yes I am novice.......