ALGÉRIE - ALGERIA Second Empire / Napoleon III (1852-1870). Medal, Prix du concours universel de Paris, moulinage de la soie à Boufarick, by Caqué 1856, Paris. Av. NAPOLÉON III - EMPEROR. Nude head to left; below signature CAQUÉ. F. Rv. * MINISTRY OF AGRICULTURE, TRADE AND PUBLIC WORKS. Composite crown, centre: CONCOURS UNIVERSEL AGRIle / PRODUITS AGRICOLES/ PARIS / A MM. MAGNAN / & REIDON / A BOUFARICK / INTROD. MOUAGE / DE LA SOIE EN ALGe / (date). Ruedas cf. 133 - Esc ; Silver - 35.9 g - 41.5 mm - 12 h From the Pierre-René Bauquis collection. Marks (hand) SILVER. With a nice grey patina. Superb. After unwinding the raw silk thread from the cocoons (reeling), the threads from several cocoons are assembled by giving them a slight twist which will define their appearance: this is the grinding process.