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Joris

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  1. All very good questions! My idea was to start with the broad question if there is any evidence obtained by any research group using any scientific tool that can differentiate between potassium silicate and other forms of potassium and silicon, about any string instrument from any period by any maker... If the answer to this very broad question is no, we might not even need the more specific questions anymore
  2. Potassium and silicon are common in the earths' crust. Their presence is not necessarily indicative of potassium silicate. Could just as well be dirt or mineral dust. Does anyone know of any evidence that the potassium and silicon that have been detected on old instruments using elemental analysis would specifically be in the form of potassium silicate? If not, I agree that there are countless other possibilities for these elements to end up on a varnished or unvarnished instrument.
  3. I would expect the first word to be [BEN]EDICTUS
  4. Apart from measuring the location of the sound post in a different way, I would also consider using a more accurate ruler, because the first mm on the ruler in the photo looks like it is almost 2 mm.
  5. Joris

    I.D A VIOLA

    This website seems to give some basic information about the maker: https://hu.museum-digital.org/index.php?t=objekt&oges=43742&navlang=en
  6. Joris

    Violin ID #6

    Christiania/Olso would be Norway (or Denmark-Norway in 1770), not Sweden
  7. I don't think I understand, wouldn't a t-nut decrease instead of increase the already short neck length and only make the problem worse?
  8. Interesting, barber's acid, which is a weak lye solution sounds a bit contradictory... I did a bit of searching online, but I didn't find much additional information on barber's acid. Can you tell me what barber's acid consists of?
  9. Is it me, or does it look like the button is separated from the neck heel?
  10. By the way, the intention of my previous post is not to impact anyone's business positively or negatively, but to show that copying photos from a dealer's website and posting them on a forum without a link is not the best way to 'not identify' the dealer.
  11. It is often quite easy to find out where unidentified photos originate from. Just do a reverse image search on Google (images.google.com), and it turns out that the photos appear to originate from this website: https://www.benningviolins.com/Fine-Violin-Catalog-Fine-Violins-for-Sale-Paul-Blanchard-violin.html
  12. The purfling corners of the front do not look similar to those of the back at all. Could either the back or the front be a replacement, especially the back with that huge ebony button crown?
  13. In that case I think I got lucky that I ran into someone who used to run a sawmill on a violin forum Thanks for all your suggestions and I hope you have a Christmas as wonderful as my piece of beech and I have!
  14. Based on your suggestion, I think it might indeed be apple. There are some pieces with very similar figure on this website: http://hobbithouseinc.com/personal/woodpics/apple.htm, and the specific gravity of 0.83 (https://www.wood-database.com/apple/) also does not seem to be too far off compared to my estimate of 1. And it also makes sense that it isn't any tropical variety, but just wood from an apple tree from someone's back yard... So, does anyone have any (good/bad) experience using apple wood for fittings?
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