Bonetool of the Month Archives

September 2018

The 13th ICAZ conference took place this month in Ankara and included two sessions related to worked bone. It has become a tradition to chose an artefact from the hosting country as bonetool of the related month.

Therefore tis time we chose two beautiful and unusual bone pins showing an anthropomporphic design. They have been found 1940-1941 in rescue excavations at the dwelling mound of Dündartepe in the Samsun region near the Black Sea in Turkey. Stratigraphic documentation is poor unfortunately, but the occupation of the site spans from the Late Chalcolithic to the Middle Bronze Age. The finds are in the collection of the Samsun Archaeology and Ethnography Museum.

Gamze Durdu & Hans Christian Küchelmann

Reference:
Durdu, Gamze (2018): A Group of Bone Ornaments from Prehistoric Samsun Region, Black Sea, Turkey, poster presented at the 13th ICAZ conference in Ankara, Ankara

August 2018

This month a snapshot from the National Museum of Scotland in Edinburgh. These bone sticks below are so called Napier’s bones. A kind of early pocket calculator developed around 1650 by the mathematician John Napier (1550-1617). With the sticks it is possible to convert complex multiplications into additions and subtractions. They have been manufactured not only from bone but also from ivory, wood or metal and are frequently provided in a small box to be kept in the pocket.
More Information.

Hans Christian Küchelmann

Inventory no. H.NL 43; photo: Hans Christian Küchelmann


July 2018

This bone tool has been found in Xinjiang, China in a context dated between 500-100 BC. The artefact is made from a rib but its exact function is not clear. Sugested functions were a hide processing tool or a tool for pottery decoration.

You Yue


June 2018

The drilled vertebra of a Cat Fish (Silurus glanis) shown above has been found in Hitzacker-Marwedel, a Roman Iron Age settlement in Niedersachsen, Germany, which was inhabited from 100-180 AD. Within the approximately 8.500 animal bones 12 artefacts were found, most of which were simple needles, awls and handles. The drilled vertebra is a unique item of an unknown purpose.

Reference:
Becker, Cornelia (2009): Über germanische Rinder, nordatlantische Störe und Grubenhäuser – Wirtschaftsweise und Siedlungsstrukturen in Hitzacker-Marwedel, Beiträge zur Archäozoologie und Prähistorischen Anthropologie 7, 81-96

May 2018

Photos: Hans Christian Küchelmann

This artefact is particularly interesting because of its object history. It is a fossil horn of an Aurochs (Bos primigenius), found in the 17th century by A. G. Wildervanck during peat digging  in the bog near Veendam. In 1669-1670 the fossil horn was equipped with silver fittings and formed into a hunting horn by Arent Hamminck. At present it is part of the collection of the Groninger Museum and exhibited in the Veenkoloniaal Museum Veendam, the Netherlands.

Hans Christian Küchelmann


April 2018

The double bead shown below was found oat the medieval to post medieval site of Bective Abbey in Ireland. The visible features confirm that the object is bone, most probably turned from a thick strip of a large mammal longbone. The whole bead shows the axially oriented, regularly spaced lines of dark spots and dashes formed by the vascular system of the bone (Haversian channels). The photomicrograph clearly shows a branching blood vessel in the bone.

This ‚double‘ bead may not be a single complete bead but two unfinished beads. To make these beads you start with a length of compact bone tissue that is drilled down the centre. Several beads are turned along the bone strip in one go but are left attached to each other. When the shaping is complete the bone strip is removed from the lathe and only then is a cut made between the beads to separate them. If you try to part the beads whilst they are turning on the lathe they will fly off in all directions when the chisel cuts through to the drilled hole! If you look at the waist between the beads you will see that one side is vertical and the other sloped and marked with a deep groove. These features ensure that the beads are cut apart accurately. Either these beads were dropped before they could be separated or they were discarded because they were sub-standard. Perhaps some of the visible surface blemishes were apparent when the bone was fresh. Could they be Rosary beads?

Measurements: length 10,1 mm, diameter 5,6 mm.

Fiona Beglane & Sonia O’Connor

Reference:
Beglane, Fiona (2016): Bone artifacts. in: Stout, G. & Stout, M. (eds.): The Bective Abbey Project: Archaeological Excavations 2009–12, 73-76, Dublin

March 2018

This months bonetools are two quite unique items since they have been manufactured from a rather rare and unusual raw material: rhinoceros ivory.

The left picture shows a spindle whorl made from a lower incisor of an Indian rhinoceros (Rhinoceros unicornis) found in a 5th century context in Alexandria, Egypt.

On the right you see a pendant made out of an upper molar of a whooly rhinoceros (Coelodonta antiquitatis). It has been found 1958 by André Leroi-Gourhan during an excavation in the Grotte du Rennes in Arcy-sur-Cure, France, in a Late Upper Paleolithic layer (couche X) assigned to the culture of the Châtelperronian (45.000-40.000 BP). The dark staining is due to fossilization, originally the pendant would have been white. Both objects have been published by Francoise Poplin (2006, 1124-1127, fig. 6-7).

Reference:
Poplin, Francois & Rahimifar, Mahnaz (2006): L’Ivoire de Rhinoceros et les Ivoire du proche-orient ancien. – Comptes Rendus des Séances de l’Académie des Inscriptions et Belle-Lettres (CRAI) 4-6/2006, 1119-1130

February 2018

The flintlock gun above was inherited by my colleague Stijn from his father. No further details about origin, provenance, object history or dating are known. Flintlock arms were invented in the 16th century, the flint lock type of this gun (snaphaunce) was used since the 17th century. Typological features reveal that the gun is a so-called Bou-Chfer from Morocco. The shape of the butt indicates that it belongs to a type called Afedali, which originates from the region of Taroudant and the valley of Oued Sous. In Northern Africa flintlock guns were in use until the 20th century, often reassembled from parts of older guns. They are still important objects in Moroccan folklore (Elgood 1995, 69-74; Ewersen, pers. com. 5.2.2018).

As many of the North African flintlock guns, this one is equipped with bone inlays in the wooden body (stock and butt), according to the local tradition possibly made of camel bones. There are examples with extremely elaborate decorations proving overwhelming artistic skills and craftsmanship in bone, wood and metal working. This gun however, was rather coarsely manufactured. Metal and wood used are poorly worked and the way the different types of wood and metal are merged with each other give the impression of a shortage of raw materials. The bone inlays consist of circular, rectangular, trapezoid and tear-drop-shaped plaques inserted in the wooden body. They are decorated with ring-and-dot motifs and drilled holes, which were filled with black, red and blue coloured substances. The arrangement of the decoration follows a symmetrical lay-out, but the spacing is done with less care than in other examples. The slots for the plaques are coarsely carved and do not fit to the shape of the inlays in all cases. Interestingly, there are slight differences visible in the bone plaques. Of the four trapezoid plaques arranged around a circular one in the right side of the butt for instance, the three ones facing to the front are neatly fitting into the carved slots while the one facing to the rear does not. It seems that the slots for the former three plaques have been shaped for pre-manufactured plaques and that the plaques have been inserted into the body before the final fine grinding of the butt was done, which then affected bone an wood together. The latter one seems to be a replacement for a lost plaque inserted later into an already existing slot, resulting in a less precise fitting.

The gun was severely damaged in a car crash, which caused the loss of several parts, including some of the bone inlays. Without the intention to produce an authentic restoration, we tried to re-build some of the missing inlays using cattle bone pieces (metapodiae and femur sections). One issue here was to be not too perfect in the shaping of the plaques and the arrangement of the decorations in order to stay in-line with the originals. Finally, the bleached bone plaques were dyed with tea and the ring-and-dot motifs were coloured.

Hans Christian Küchelmann

Photos: Stijn

Reference:
Elgood, Robert (1995): Firearms of the Islamic World in the Tareq Rajab Museum, Kuwait, London

January 2018

The first bonetools in 2018 are three examples of Iron Age combs from Spain. There are altogether 19 bone and ivory combs as well as one wooden comb known from the Iberian Culture (4th to 2nd centuries BC). All of these combs were found in settlements. They comprise part of the project “Wood, Bone, Ivory, Antler and Shell. Marginal or isolated crafts?” (HAR2013-45770-P).

Top row:
Ivory comb with incised decoration from Kelin, an Iberian Iron Age central place (Caudete de las Fuentes, Valencia, Spain; 3rd century BC). The comb was found in a house excavated in 2002. It is held in the Museu de Prehistòria de València (MPV).
Length: 7,0 cm; width: 4,2 cm.
Face a: two carnivores facing each other; face b: two long-necked birds.
Photos: Museu de Prehistòria de València.

Middle row:
Bone comb with incised decoration from Puntal dels Llops (Olocau, Valencia, Spain; 3rd century BC). The comb comes from ‘Unit 4’ at this site, excavated in 1981. It is also kept in the Museu de Prehistòria de València.
Length (restored): 4,0 cm; width (preserved): 2,5 cm.
Faces a and b: wild boar.
Photos: Museu de Prehistòria de València.

Bottom row:
Ivory comb with incised decoration from La Serreta (Alcoi, Alicante, Spain; 3rd century BC). The comb comes from an excavation unit studied in 1956. It is exhibited in the Museu Arqueológico Alcoi.
Length: 7,6 cm; width: 4,2 cm
Faces a and b: Geometric and plant motives.
Photos: E. Collado.

Consuelo Mata-Parreño
Grup de Recerca en Arqueologia del Mediterrani (GRAM)
Dept. Prehistòria i Arqueologia
Universitat de València


Bonetool of the Month Archives