On the back of mounting an illegible collection label.
The troop review is probably happening at "Trou de la forêt de Marly".
Several drawings on the same theme are known from Paon, including a gouache preserved in the Palace of Versailles (NV 30607), as well as engravings.
Period and School: (1738 - 1785)
Subject: Louis XV reviewing La Maison du ROI
Inscriptions: Titled on a label on the back