  We have obtained $V$, $R_c$, $I_c$ HRCAM images and TIGER spectrography of
the central region of the peanut galaxy NGC~128. The colour images reveal the
presence of a red disc tilted by about 26 degres with respect to the major-axis
of the galaxy. This tilted disc is made of dust and gas, as revealed by the 2D
TIGER map of the ionized gas distribution. The TIGER stellar and gas velocity
fields show that the angular momentum vectors of the stellar and gaseous
components are reversed. We therefore suggest that the gas orbits belong to the
so-called anomalous family, which is evidence for a tumbling triaxial potential
(a bar) associated with the peanut morphology. The bar formation has very
probably been triggered through the interaction with its nearby companion
NGC~127, from which the dissipative component is being accreted along
retrograde orbits.
