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Showing results for tags 'dendrochronology'.
Found 4 results
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Hi, I am struggling to work out what my violin is prior to auction and was hoping to enlist the support of some experts! Below is the dendro report, which has produced unclear outcomes. Hoping someone could kindly provide their expert opinion. One thing is throwing me, Mittenwald violins are made with a one-piece bottom rib, which doesn't appear to be the case with this violin. Dendro Report: The belly is made in 2 sections, jointed down the middle. A total of 71 rings were measured on the bass side and 77 on the treble side. The grain orientation (tree-ring growth direction) runs from the edges inward on both sides. The tests were processed using the formula devised by Baillie & Pilcher for their 1973 CROS crossdating algorithm. This formula has been used by most professional dendrochronological software ever since. Results The most significant cross-matches with my database place the latest visible fully formed growth-ring on the bass side at A.D.1805 and a little later at A.D.1816 on the treble side. As the spring growth of the following year is just visible after the latest rings measured, one year needs to be added to the dates found, leading to an overall terminus post quem or earliest possible felling year of A.D.1817. A comparison of the plotted data on a graph shows very similar ring-patterns, slightly offset in time from each other. It seems clear that the 2 piece were recovered from the same tree. As the 2 sides are related, their data were combined into a mean chronology, which usually represents the general ring-pattern of the tree better than individual ring-series. The data were initially tested against published regional data from the International Tree-Ring Data-Bank (ITRDB). Several highly significant cross-matches were identified. The strongest results suggest that the origin of the trees is the central Alps. References from Switzerland, Kreuth in Bavaria, and southern Austria crossdated significantly. A good response was obtained against data from other instruments, with over 300 ring-patterns cross-matching significantly. From our database, they most significant cross-matches with the mean chronology (combined bass and treble side data) refer to the following instruments: A c.1840 Mittenwald violin, an 1870s French violin by JB Vuillaume, a 3/4 size Mittenwald violin of the Neuner school c.1860s, a violin attributed to the Panormo school, a Bavarian violin copy of Del Gesù, a c.1820/30 English viola of the Panormo/Furber school, a violin attributed to the "Marche" central Italian school, a c.1850/60 Mittenwald violin of the Neuner school, a French violin (Hill's import), a violin probably French c.1835/40, a Mittenwald Neuner violin , a c.1830 violin attributed to Italian school, a 1886 Mittenwald cello of the Neuner school, a 1838 French violin by A.S.P Bernardel, a c.1920 Italian violin by Leandro Bisiach, a French 1902 violin by Paul Bailly, an 1820 Mittenwald violin by Johannes Rieger, a 19th century Mittenwald violin, a c.1830s English cello, a c.1850/55 Mittenwald cello of the Neuner school, a c.1800 Bavarian/Mittenwald violin, a violin stamped "Goulding" possibly Mittenwald import, a French "Maggini copy, possibly Vuillaume workshop, a c.1890 German violin of the Dresden school, an English early 19th century cello probably by Joseph Panormo, a c.1855 Mittenwald cello, a c.1820/25 English violin by Jacob Fendt, a c.1890 Mittenwald violin by Neuner & Hornsteiner, an English viola of the Panormo school, a c.1840s Mittenwald Neuner violin, etc... The cross-matching tests identified correlations with instruments from a variety of origins, and it is therefore not possible to suggest a credible provenance for the instrument based on the results. Conclusion Essentially, with a dendrochronological or terminus post quem date of 1817, a making date from about the very early 1820s onward is possible.
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New dendrochronology evidence possibly pointing to a connection between Strad and Amati. The rest is mostly a summary of what we have discussed - almost ad nauseum - re Strad's secret varnish or method of wood prep. This article implies it might just be animal glue... Anyway, I think an interesting summary, with of course, the typical slight inaccuracies expected from non-players/non-makers. This article does give a few details as to where and how samples were taken and examined. Plus lots of good references. What do you think??? https://cen.acs.org/analytical-chemistry/art-&-artifacts/Stradivari-meets-science/101/i15 -
Hi all. So here it is. This is the violin that was the spark that caused fire in my head. Although I've got some conjuctures nothing's still have no idea who has made this violin. Just to make it more clear I've decided to ask Peter Ratcliff to obtaine belly dates which he naturally did. I would like to thank him again here. Indeed he is really a pro :hail: What I have is my description and Peter's data of course. Measurements in spite of wood wear could not match exactly typical of that which father of this violin used to make. Measurements: LOB 354mm, Widths: 161/107/199,5. Peter's data: "The bass side visible latest ring is dated 1824 and the treble side 1817. You are right about the two sides being different and it is quite clear when I examine the plotted data on a graph.(...) The strongest correlations by far are with instruments made in Mittenwald, and that wood is quite typical of the one they used, but I wouldn't say exclusively. In view of the latest ring date of 1824, we have to assume that the violin was not made before about 1835 or so, possibly a little later, bearing in mind the exceedingly tight growth at the end of the series, (at the centre joint), and that is where some wood has to be removed to create the joint between the two sides prior to gluing the surfaced together. I also tested the data against published Master reference chronologies from the ITRDB (international tree-ring data bank) and found that both sides correlated with several at very significant levels of significance at the dates above, the best correlations with Swiss and Southern Austrian references." I've got some photos of it. Some of them are taken before restoration. Head (which was replaced with neck) and body was in bad state. I would say someone tried to change scroll with blunt knife. Lower ribs were replaced before I bought it years ago. They're two piece. If you would be so kind please help to identify it. If any more photo measure is needed I would be happy to deliver it. Regards!
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Hi, I am interested in doing a dendrochronology test in a violin. As I am situated in Vienna, I asked myself if there is such a test near. Thanks in advance for help.
