nkgibbs Posted March 27, 2018 Share Posted March 27, 2018 (edited) Dear C.netters, This concertina (#17642) is in auction at the moment with an invoice from Lachenal dated 11th January 1872 (see photo). I hope that this may be useful for Lachenal dating? Best regards, Neil Edited March 27, 2018 by nkgibbs Quote Link to comment Share on other sites More sharing options...
Mike Pierceall Posted March 27, 2018 Share Posted March 27, 2018 It seems to match up fairly closely with one way of estimating Lachenals: 17642 Divided by 769 = 23 + 1850 = 1873. Although from year to year production would vary, so always good to establish some milestones. Quote Link to comment Share on other sites More sharing options...
Dowright Posted March 30, 2018 Share Posted March 30, 2018 This is nice support for what I already had. I had dated No 17642 to 1872, but based on different information. I am impressed with Mike Pierceall's estimate based on such a simple formula. But I would caution that the formula is unlikely to hold up for other Lachenal manufacturing periods, given the ups and downs of the level of Lachenal production.. Quote Link to comment Share on other sites More sharing options...
wunks Posted June 14, 2018 Share Posted June 14, 2018 It's a dark and stormy night, no one home but me (and the pups, the cat, the rabbit, and the horse) so I braved the autopsy of a Lachenal English I got from a luthier friend who was cleaning out. It's stamped #21153 on all parts which I guess would date it around 1878. It looks the same as the one above with box but four fold bellows. Quote Link to comment Share on other sites More sharing options...
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