  We report on further observations of the luminous halo of NGC 5907. New V, I
and B deep photometry confirms the existence of an extended stellar halo redder
than the disk. Our data are consistent with a faint halo, or very thick disk,
composed of a metal-rich old stellar population. We propose that it could be
the remnant of a merged small elliptical, and we support our hypothesis with
N-body simulations.
