The boar's head — known in French as the hure de sanglier — is a guarantee hallmark used in France from 1838 to 1973 to certify silver articles of 800‰ fineness, meaning a silver content of 80 per cent by mass. Struck by the French Guarantee Office (Bureau de la Garantie), the mark served as an official assurance to buyers that the metal met the second standard of silver purity recognised under French law. It appears on a wide range of objects, from jewellery and personal accessories to hollowware and decorative silver, and remains an essential reference point for collectors, dealers, and auction specialists dating and authenticating French silver of the nineteenth and twentieth centuries.

The French Hallmarking System

France developed one of the most systematically organised hallmarking regimes in Europe, administered through a network of guarantee offices that operated under the authority of the state. Unlike the British system, which centred on assay offices in specific cities, the French system was more centralised and used a vocabulary of pictorial punches — animals, heads, and other devices — to communicate fineness, article type, and period of manufacture at a glance. Each device was assigned to a specific standard and a specific category of object or metal, allowing the informed reader to decode a piece's legal status without reference to alphanumeric codes.

Silver in France was recognised at two principal standards: the first standard of 950‰ (95 per cent silver) and the second standard of 800‰ (80 per cent silver). The higher standard carried its own distinct marks, while the boar's head was reserved specifically for the lower, 800‰ grade. This distinction matters practically: a piece bearing the boar's head is a silver article of respectable but not exceptional fineness, broadly comparable to the continental European 800 silver widely produced in Germany, Austria, and the Low Countries during the same era.

The Mark in Detail

The boar's head punch depicts the profile of a wild boar's head, typically shown facing left, set within a shaped cartouche whose outline varied slightly across different periods and offices. The image was chosen as part of the broader French practice of assigning animal-head devices to guarantee marks — a visual language that distinguished the guarantee punch from maker's marks, import marks, and tax marks that might also appear on the same object. The boar's head is not to be confused with other animal punches in the French system, such as the owl (hibou), used for imported articles of various metals, or the eagle's head (tête d'aigle), associated with first-standard gold.

The mark was introduced under the hallmarking legislation of 1838, which reorganised and consolidated the French guarantee system following earlier reforms of the Revolutionary and Napoleonic periods. It remained in continuous use until 1973, when France undertook a further rationalisation of its hallmarking laws. The 135-year span of the mark's use means that the precise form of the punch — the style of engraving, the shape of the cartouche, and the office letter sometimes incorporated — can assist specialists in narrowing the date of manufacture or importation more precisely than the broad 1838–1973 range alone would suggest.

Imported and Domestic Silver

A particularly important function of the boar's head mark was its application to imported silver. France required that foreign silver articles entering the country for sale be submitted to the guarantee office and struck with the appropriate French mark before being offered to the public. For pieces of 800‰ fineness arriving from abroad — a category that encompassed a substantial volume of German, Austrian, and Eastern European silver during the late nineteenth and early twentieth centuries — the boar's head served as the French state's endorsement of the declared fineness. This practice means that the mark is encountered not only on pieces made in France but also on imported Continental silver that subsequently entered the French market, a distinction that can be significant when establishing provenance.

Domestic French silversmiths working to the 800‰ standard would also have their pieces struck with the boar's head alongside the maker's punch (poinçon de maître), which by law had to incorporate the maker's initials and a distinctive device. The combination of maker's mark and guarantee mark on a single piece provides the fullest documentary record of the object's origin and legal standing.

Identifying the Mark

When examining a piece of French silver, the boar's head is most commonly found in one of several locations depending on the form of the object: on the underside of flatware, on the interior rim of hollowware, on the clasp or reverse of jewellery, or on a discrete flat surface of a decorative object. The punch is generally small — often only a few millimetres across — and may be worn or partially obscured on heavily used pieces. Magnification and raking light are standard tools for reading French silver marks.

Collectors should be aware that the boar's head can be confused, at a glance, with other animal punches if the strike is poor or the surface corroded. Reference to standard catalogues of French hallmarks, such as those compiled by Tardy (the standard French reference for silver marks), is advisable when authentication is in question. The Tardy volumes illustrate the evolution of the boar's head punch across different periods and offices, providing a reliable comparative resource.

Significance for Collectors and the Trade

For those acquiring French silver jewellery or hollowware, the presence of the boar's head mark carries several practical implications. It confirms that the piece was legally circulated in France and that its silver content was officially verified at the time of marking. It places the object within a defined fineness category — 800‰ — which is relevant both for intrinsic metal value and for understanding the manufacturing context, since 800 silver was widely used for everyday and mid-range decorative objects rather than for the finest presentation pieces, which tended to be made to the 950‰ standard.

The mark also provides a terminus post quem of 1838 and a terminus ante quem of 1973, which, combined with stylistic analysis and the maker's mark where present, can substantially narrow the dating of an unsigned or ambiguously attributed piece. In the auction and dealer context, correct identification of the boar's head mark is a basic competency for anyone handling French silver of the nineteenth and twentieth centuries, and its presence or absence bears directly on cataloguing, valuation, and the accuracy of provenance statements.

Further Reading

• GIA: Hallmarks on Precious Metals — an overview of international marking systems