This superb item was made in Germany between 1908 and 1932, with a bias toward the earlier time frame. The seller is correct in stating that the top edge is typically rough and cannot be considered a flaw. I personally looked this very item over some years back and can attest to its quality. In my opinion, the leaf repair can be done better. A qualified restorer could make this jam pot's lid leaf look nearly as good as new. The RSIN on this item is a "1," making it exceedingly rare. If you collect German porcelain - and what discerning collector wouldn't want to - snap this item up.
09/19 Update: This sold for an astounding $1,225!