The guitar, in the foreground, is anonymous but built in the style of Lacôte. It is as meticulously built and with excellent materials. Museum curator, Joël Dugot, suggested that Lacôte may have allowed his employees to build guitars for personal sale. Perhaps this is an example of one. The guitar in the background is a Lacôte. This guitar presents a very elegant solution to the problem of weight that such a wide neck produces. The guitar also displays a lever mechanism for the changing the pitch of the diapasons. The treatment of both of these issues in the construction of the anonymous guitar is more utilitarian. You can see photos and descriptions of these guitars on the museum's website at: http://mediatheque.cite-musique.fr/masc/ . I will report my finding to you at a future date.
As always, Joël Dugot's assistance during my visit was generous and informative. Thank you.