Masonic master's diploma, parchment, "Loge EC de l'Union Maçonnique à Groningue", dated the 18th day of the 12th month of the year VL58 twelve in the name of François Nicolas IMMELIN captain engineer geographer. Numerous signatures. With ribbon seal and red wax seal (accidents), in oval brass box. With sky-blue saltire and cockade embroidered with gold thread and canetille with the numeral "JB" and its white silk apron, edged with sky-blue braid embroidered with cotton, gold thread and canetille. With cords. A.B.E. Late 18th, early 19th century. History: François Nicolas IMMELIN was granted naturalization by the King in 1817. At the time, he was a demi-solde staff captain.