I refer to these bottles as central France which includes Paris and Paris region along with the Loire Valley.
 
Bottle 2.46 is as near mint as you can get despite being made in about 1730. It has no surface wear at all. It is elegant and refined, the glass blower has reached near perfection here.
Bottle 2.92 on the other hand is heavily worn and the applied string rim is crude and heavy. The bottle is much heavier too with exaggerated neck stretching. C 1720.
 
2.46.-- Weight 680gms.  --Height 26.5cm.-- Width 11cm  .-- Capacity 900cc.
 
2.92.-- Weight 1070gms.--Height 27.2cm.-- Width 11.3cm.-- Capacity 925cc.
 
Both bottles have glass blowpipe pontil scars. The  applied V shaped string rim on 2.46 is neatly tooled unlike 2.92 where a bit of molten glass is just wound round the top of the neck.  
 
 
 
BOTTLES - 2.46 AND 2.92
2.46.
2.46.
2.46.
2.46.
2.92.
2.92.
2.92.
2.92.