Officially the hp-ratings for Turcat-Méry were always in single numbers from 1908 onwards (before 1908 I have no data). From 1909 the standard hp-ratings were the 14hp and 18hp, a 25hp added from 1910 onwards. However I found that an Austrian coachbuilder with the name Wagen- Carrosserie- und Automobilfabrik AG in Vienna had delivered in 1910 a 15/20hp Turcat-Méry with sporting body to the engineer d'Ester junior. Could that have been this car? The hp-rating must have been a recalculated value for the Austrian tax law, I suppose (for the 18hp?).