British Museum blog

Recording old cauldrons with new techniques


Stephen Crummy, archaeological illustrator, British Museum

As illustrator in the Department of Prehistory and Europe at the British Museum, I am always looking for the best way to help our curators interpret an object. My role is to produce artwork that shows the form, construction and nature of objects and any decoration on them so that they can be clearly understood. This will usually result in illustration for academic publications and exhibitions as a result of research work on the Museum collection, or excavations.

Traditionally I have produced pen and ink technical drawings but new opportunities are available through various computer-generated methods of recording, analysing and understanding information about objects and excavation. With the Chiseldon Cauldrons material, I am exploring some of the possibilities of these new technologies, and in this case using photogrammetry and laser scanning programs to produce 3D records of the archaeological remains of individual cauldron blocks as they are excavated by Alex and Jamie.

Three-dimensional scan results

Three-dimensional scan results

We are using a laser scanning system to produce 3D computer models of the individual pieces from each cauldron. This is achieved by plotting a thin red laser line as it is slowly moved across the surface of an object. Having recorded each piece we are hoping to use the photogrammetry programme to virtually re-construct the blocks as excavated.

The early results we achieved proved somewhat variable, especially with the laser scanning, but we are now starting to produce some very good quality scans in terms of both modelling and colour accuracy.

The plan is to produce virtual models of each cauldron as excavated which will enable us to understand much better what they would have originally looked like, and how they were made. It is also hoped that an overall plan of the pit and its contents can be reproduced. We’ll also be able to produce artwork for both printed and online publication, and to generate virtual re-constructions for publication and display. As we create interesting images, we’ll also post some of them here on the blog so you can see what we’re finding.

The Chiseldon cauldrons research project is supported by the Leverhulme Trust

Find out more about this research project

If you would like to leave a comment click on the title

Filed under: Archaeology, Chiseldon cauldrons, Conservation, Research, , , , ,

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  1. ritaroberts says:

    Conservation of the Chiseldon cauldrons sounds really interesting,as do your illustrations.I will be interested to see further results. The advance in technology these days is so rewarding in the field of archaeology.

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Most Greek sculpture that survives from antiquity is carved from white marble, of which the Mediterranean has many natural sources. A relationship has often been assumed between the pure white of freshly cut marble and the idealism of Greek art. In fact, the opposite is true. Colour was intrinsic to ancient ideas of beauty. For centuries this has been a subject of fascination and controversy. The great Italian Renaissance sculptor Michelangelo revived the Greek idea of the human body but denied the use of colour. This was partly due to negative associations with the painted saints of the medieval period. During the European Enlightenment of the 1750s onwards, and increasingly into our own time, the preferred aesthetic was a truth to materials. Painting and gilding were seen as unnecessary and undesirable.

Sculpture in antiquity was often adorned not only with colour but also with different materials. The Greek marble statue of an archer reconstructed here was drilled and fitted with metal attachments. The figure originally held a bronze bow and arrow and a quiver was fixed to his left hip by a metal dowel. Individual locks of hair were made of lead. The colourful design of the man’s knitted all-in-one garment, often worn by peoples from the east, is clearly seen weathered into the marble surface under controlled lighting.

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