I guess I really did not address the specific rifle you listed above. To me that looks like a model 146 built on a FN 98 action. Some one has shortened the barrel for sure. The 146 models were made from 1937-1941 and the one you pictured seems to be a 1938 make. The odd feature I do notice is that the bottom side of the bolt handle is not flattened and checkered like other98 action model 146's I have seen or had. I would be curious to see the gas ports on the bottom side of the bolt body. They should be elongated holes on a 98 bolt if I am not mistaken.
