| ROCHETTE JEUNE | France, c.1820, MIM SIM | Graphometers = P.C. (1979), P.C. (1987), Libert and Castor 4/28/82; Clinometer = D.(1973); Surveying Instrument = P.C. (1987); Miner's Compass = P.C. (1987). | probably the son of Gaspard Rochette. | au Griffon, Quai de l'Horloge, Paris. | Wynter and Turner; Wynter; RSW. | 
|  |  |  |  |  |  |