Laminated steel is twist steel, just a slightly different process from damascus.
A. Greener was the son of W.W. Greener. He was not a successor to Greener Arms; Albert moved to America and did make a few guns but he made them here not in Belgium. A real A. Greener is worth a pretty penny. Unfortunately yours is as was stated a cheap Belgian knockoff. If you have any doubts you can contact Greener at
[email protected]