It is good to see VANDOO pop up on a post here, as I always looked forward to his entries, miss him very much already.
As always, an interesting item, and well observed as far as the crudely cast hilt, which seems almost fanciful, and the blade which does not seem anything to do with Hungarian swords.
The blade seems potentially very mid to latter 19th century to me, and possibly one of the support units like pioneers, sappers etc. which may have brought the suggestion of saw back removal (N2S). The hilt is cast much like band swords in character.
Whatever the case, this was not anything Hungarian, nor 17th/18th c. despite the always (reliable??!!) online descriptions in these auction entries.
and as Ariel notes, often hilts pop up year to year with different blades. Industrious and creative sellers.