This directory contains two animations generated from the STL mesh:

belgammel-stl-newlook.mp4
belgammel-stl-oldlook.mp4

The file belgammel-stl-newlook.mp4 is a rendering in a clean bronze
texture; belgammel-stl-oldlook.mp4 has a texture applied that is
representative of the current condition of the ram.

The file ram.stl.zip is the STL mesh used as a source for these animations.

The paper associated with these data is:

Adams, J. R., Antoniadou, A., Hunt, C. O., Bennett, P., Croudace,
I. W., Taylor, R. N., Pearce, R. B., Earl, G. P., Flemming, N. C.,
Moggeridge, J., Whiteside, T., Oliver, K. and Parker, A. J. (2013),
The Belgammel Ram, a Hellenistic-Roman Bronze Proembolion Found off
the Coast of Libya: test analysis of function, date and metallurgy,
with a digital reference archive. International Journal of Nautical
Archaeology, 42: 60–75. doi: 10.1111/1095-9270.12001

The abstract of this paper follows:

The Belgammel Ram was found off the coast of Libya in 1964, and
examined during 2008–9. The following techniques were used: surface
non-contact digitizing using a laser scanner, reflectance
transformation imaging using polynomial texture mapping and
hemi-spherical harmonics, digital photogrammetry with dense surface
modelling, structured light optical scanning, and X-ray fluorescence
analysis. For internal structure the ram was examined by X-radiography
and 3-D X-ray tomography. Metallurgical composition was studied by
micro-drilling and subjecting the samples to scanning electron
microscope X-ray micro-analysis, micro X-ray fluorescence and X-ray
backscatter. The lead isotope composition was analysed.

The alloy has average percentage composition Cu = 86.9, Sn = 6.3, Pb =
6.6, and Zn = < 0.10. The Belgammel Ram is probably a
Hellenistic-Roman proembolion from a small military vessel or
tesseraria. The archived data are at the Faculty of Engineering and
Environment, Engineering Sciences, Material Data Centre, University of
Southampton (muvis@soton.ac.uk).