jacobsaunders

Looks roughly like a Landolfi to me

You could buy the definitive Nürnberger book der Holfter GmbH im Online-Buchshop : VDG: Albert Nürnberger Ausstellung Leipzig 2013 and then spend all weekend trying to work it out, but you will find it isn't remotely as straightforward as you think

Markneukirchen area, pre WWI (the bow too)

think you will find the had a tool for this, a kind of Gauge. If you try it freehand, you will finish up with a dogs dinner

These "Fahrkarten" are largely a 19th. C phenomenon https://maestronet.com/forum/index.php?/topic/330195-johann-adam-schönfelder/&do=findComment&comment=621046

you have convinced me that it's definitely French now (corner blocks) There used to be a bloke in Vienna who made such ridiculous Bassbar "improvements" etc, then glued his label "Joseph von Wien" in, so you knew what to expect. You will have to bite your lip, and be polite, since the "improver" is the ancestor of your customer. Life sometimes sends severe challenges to the humble violin repairman

get a fretsaw

since you speak german, you should try this one next Geigen-Geschichten : Berr, Albert: Amazon.de: Books

Yes, I could see your pictures now, thanks. A curious violin, which doesn’t seem to fit in any “school”, and appears to have a replacement scroll. I wonder if the label is necessarily kosher?

Unfortunately I can’t open your pictures. I have lived in Austria since 1985, and to date have never seen a violin from Klagenfurt. Far more lightly would be a shopkeeper who labelled Saxon wares that he sold. Perhaps you could find a way for me to see your pictures

There is the very occasional violin, where it is foolish to climb the barricades, dogmatically insisting that it is either German or French. As I noted in my first post, most pictures were too out of focus for me to be sure. Should Mr. Various, in the course of his repair, have occasion to take the top off, he should post pictures, since then I’m confident that I would have an opinion

I was wondering, to what extent you were able to be sure that it's french, since the pictures were a litte out of focus at the bits I wanted to check

All of the major Markneukirchen wholesalers in the late 19th C had “Hopf model” violins in their catalogue. They were the usual cottage industry cheaper violins. Yours will have with a large degree of certainty nothing to do with anybody called Hopf. The museum in Markneukirchen has a few real Hopf violins, which are quite a revelation, since they are much nicer, and don’t have this typical squarish outline. The Hopf Stamp belonging to the wholsaler G.A. Pfretschner is illustrated on page 105 of Zöbisches book on the Hopf family (below)

You are quite right, a one piece cello back it quite rare. I believe your cello is what we call ”Großstadtmeister” here, i.e. something finished off from largely bought Markneuirchen parts. In Vienna, people like Jaura or Rauer made stuff like this, although we can exclude them, because they would have used one of Staufers adjustable necks (unless the neck is a replacement)

I don’t believe either volume I or volume III are available online, you will have to buy the book (and learn Victorian German). The first volume is a journey through all the different regions of Europe as is was in the 19th C (and even America, although you lot would probably sniff at that). Some areas hardly exist any more, since everything got carved up differently after WWI. The second volume is a straight forward alphabetical lexicon, where the various relationships get largely lost compared to the first volume, and the third is an update of the lexicon part, with all newer makers, and new found knowledge on the old ones (where anything has been found). One of the best things about the third volume, is that Drescher lists his sources, should one which to research further