Blank face

It seems to be a real Knitl from the late 18th century. Having it for free like the OP I can see no reason why it shoulddn't be restorable except that the button "brick" is an irreversible aesthetical shipwreck.

Obviously it's that they confused the century.

There's this odd scratched down area between bridge and bass soundhole making me wonder if the most part of the varnish isn't a later addition, maybe from the mid 19th. But hard to tell by photos.

What do you think about varnish and scroll of the OP?

Could be a real Thir with an altered varnish. I'm also not 100% convinced of the scroll.

Call it "Oppio", sounds better.

Not a big deal of a difference.

I see rather a sort of Medio Fino or another basic Mirecourt.

No, they presumably glued the shaped blocks to the bottom plate and built the ribs around them. The result can from outside look as if a mould was used. Often the corner blocks are longer in the C bouts (just opposite to an inside mould construction), sometimes the tips of the linings glued over the blocks with a point, but not always. We discussed it sometimes:

Nearly correct, but nearly only. "Western Germany" exists from the moment on when the "Reich" (Empire) ended, i.e. after 1945 resp. 1949. So these marks are pointing always to a pre-war origin, not to Western Germany =FRG, which was a post war state.

One more point for an early JTL or the like.

I agree completely with Martin. Frog and button don’t belong and have nothing to do with HR Pfretzschner, the stick is worthless in this state, no matter what the brand might be. So one would buy an anonymous worn gold frog for thousand. Sounds inflated somehow.

Unfortunately this auction hause photos are processed in a way that nearly all instruments can look very similar, while identification features are blurred. Making an assumption to be taken with a big spoon full of salt I would guess a Mirecourt origin, but it would be necessary to be confirmed (or disproved) with more detailled photos, like it's described in the "How to photograph" thread.

Factually many of the original Hopf or David Hopf brands were made in this odd way. It's more the way the ff are cut and what's possible to see from the scroll making me assume that it's not a "real" Hopf, the brand copied after an original. The varnish looks altered, too.

Agree. The feathering of the rib joints and the one piece bottom rib are pointing to the French construction method. BTW, the Spanish location of the OP are letting me always suspect a sort of South French/Pyrenean origin.