  We present deep imaging in the U, B and I bands obtained under excellent
seeing conditions of the double quasar Q0151+048A,B and of the Damped Ly-alpha
(DLA) absorbing galaxy at z(abs) = 1.9342 named S4.
  We analyse the data employing two separate and independent methods. First we
deconvolve the images using the MCS algorithm, secondly we decompose the images
via an object based iteration process where we fit models to objects without
any attempt to improve the resolution of the data. Our detailed analysis of the
images reveals, somewhat surprisingly, that extended objects centred on the
quasars themselves are much brighter continuum sources than the DLA galaxy.
  Due to the complexity caused by the many superimposed objects, we are unable
to certify whether or not continuum emission from the DLA galaxy is detected.
Continuum emission from the extended objects centred on the positions of the
quasars is clearly seen, and the objects are tentatively identified as the
``host galaxies'' of the quasars. The flux of those host galaxies is of order
2--6% of the quasar flux, and the light profile of the brighter of the two is
clearly best fit with a de Vaucouleurs profile. We discuss two alternative
interpretations of the origin of the extended flux: i) the early stage of a
massive elliptical galaxy in the process of forming the bulk of its stars, and
ii) quasar light scattered by dust.
