Vijftigjarig bestaan der vrijmetselaarsloge "La Vertu" te Leiden, ter herinnering aan de ontploffing van de kruitboot aan de Rapenburg te Leiden 1807

This silver medal, created by Wilno in 1807, commemorates the 50th anniversary of the Freemasons' lodge "La Vertu" in Leiden, Netherlands. The obverse features a kneeling woman, symbolizing virtue, offering a sacrifice to a skeletal figure representing death. The inscription "Vijftigjarig bestaan der vrijmetselaarsloge "La Vertu" te Leiden, ter herinnering aan de ontploffing van de kruitboot aan de Rapenburg te Leiden" references the lodge's history and the 1757 explosion of a gunpowder boat on the Rapenburg canal. This historical event, likely a tragedy for the city of Leiden, was remembered by the Freemasons through this commemorative medal.