I do not think this is a pre war rework. It appears to be more of a last ditch rebuild from various parts. The stock, barrel and bands are GEW. I believe the receiver is Belgian. It has the script L in the circle with a crown. The star Z is listed as a Belgian sub inspector's mark. The stock has three initials at the lower band location. I can only assume it is from the worker that shortened the stock. Headspace is fine and it shoots well.