Triangular bar ashtray in white opaline, former advertising medium for the aperitif brand Noilly Prat.
French manufacture of the Opalex brand, 2 sides of the ashtray are on a green background with the indication Noilly Prat and the 3rd side is on a burgundy background with the indication Noilly Cassis.
Very good general condition, few traces of use, only a few small chips at the base of the very barely visible ashtray and erasures in places of the green and red colors.
All the details are in the photos that accompany this description.