  The anisotropy of the speed of light at 1 part in 10^3 has been detected by
Michelson and Morley (1887), Miller (1925/26), Illingworth (1927), Joos (1930),
Jaseja et al. (1964), Torr and Kolen (1984), De Witte (1991) and Cahill (2006)
using a variety of experimental techniques, from gas-mode Michelson
interferometers (with the relativistic theory for these only determined in
2002) to one-way RF coaxial cable propagation timing. All agree on the speed,
right ascension and declination of the anisotropy velocity. The Stephan Marinov
experiment (1984) detected a light speed anisotropy using a mechanical coupled
shutters technique which has holes in co-rotating disks, essentially a one-way
version of the Fizeau mechanical round-trip speed-of-light experiment. The
Marinov data is re-analysed herein because the velocity vector he determined is
in a very different direction to that from the above experiments. No
explanation for this difference has been uncovered.
