The object shown in the selected region of the image is an antique silver sugar tongs, finely decorated with baroque/rococo style motifs. The "HC" hallmark inside a lozenge (diamond-shaped) punch on French silver stands for Hénin & Cie, a prominent Parisian manufacturing silversmith firm active from the late 19th through the mid-20th century (successor to Hénin & Vivier).Understanding the Marks on Your PieceMaker's Mark (HC): The "HC" initials enclosed in a vertical diamond/lozenge shape specifically identify the workshop of Hénin & Cie (located at 77 rue de Turenne, Paris). Massive Silver with 75 g of pure Silver and extremely rare art piece Famous Parisian silversmith active in the second half of the 18th century !! known for the production of eclectic pieces of the highest quality.!!