Hi Fred,

Thank you for contacting Mearto with your appraisal inquiry.
The Erté Courvoisier Cognac collection was created in 1988 by one of the great masters of Art Deco and fashion illustration, Erté (aka Romain de Tirtoff). The bottle shape was designed by Erté and each unique illustration represents a different stage in the cognac-making process. The contents are a blend of rare Grande Champagne cognacs, some from the 19th century.
This bottle retails (primary value) for about $3,000; a fair-market / secondary value based on that value is $1,000-1,500
Based on the photos and information provided, and subject to examination, this is:

A vintage Courvoisier cognac Erte Collection one-liter bottle
Bottle No 1 (Vigne) from a collection of 8 limited-edition bottles
unopened
1 litre
CONDITION: appears to be in good condition; value assumes the liquid inside the bottle is clear and that the bottle is unopened.
$1,000-1,500*
*represents a fair-market value for auction purposes; retail or asking price may vary.

Please let us know if you have additional items to appraise, and thank you again for using Mearto.