Six flutes correspond perfectly to Baccarat Model Clérmont glasses, they are not signed but, dating from the 19th century, this is explained,
Two others are identical to each other but slightly different in height and thickness compared to the others.
On Proantic I put on sale a second series of 20 flutes of the same model, the two lots combined can form a set of 28 units: https://www.proantic.com/1034914-serie-20-flutes-anciennes-en-cristal-taille-jambe-double-balustre-mod-clermont.html