Michael and Tim S....as one of the former owners of the J. Donn Linder gun I am convinced that this gun had a high degree of work done at the Lindner shop in Suhl. The reason for this is that the Serial number on the gun is a Lindner S/N (941) and the Lindner bbl numbers (as I recall) are some 200 more than the 941 s/n. Engraving style and features (ie ejector eyes) are all Lindner style and quality. While the bbls do not have the usual "HAL" with crossed pistols etc... this could be explained by J. Donn ordering the piece from Lindner in an incomplete state...ie a bbld action to be stocked and finished by J. Donn. Additionally I trly doubt the J. Donn produced in excess of 941 pieces with his name on them. If this was the case than Mr. Donn and his guns would be justifably famous for their quality. (As it is I only know of a few Donn pieces) Lastly it is documented that there were other makers tht were utilizing the Linder boxlock action for their products...I think Ken Georgi can shed some light on this point. Guten abend Jeff S.