Guitar after  René Lacôte model 1826. Diapason 630. 

It is equipped with savarez carte blanche strings. Tuners are pegsheads.

Back and sides are Cuban mahogany, the head is also Cuban mahogany veneered with ebony.  The neck is basswood veneered with ebony, the heel is solid ebony, the top is spruce, and the threading as well as the rosette are bones and ebony.