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abstract: 'Quadruple gravitational lens systems offer the possibility of measuring time delays for image pairs, microlensing effects, and extinction in distant galaxies. Observations of these systems may be used to obtain estimates of H$_0$ and to study the various mass components of lens galaxies at high redshifts. With the Hubble Space Telescope, we have observed the reddest known gravitational lens system, . We used WFPC2/PC1 to obtain deep, high-resolution images with two filters, F675W and F814W. We present a detailed analysis of all of the components of , as well as macrolens models. Our main results are: (1) confirmation that  is inescapably a gravitational lens system; (2) discovery of a blue arc connecting the 3 brightest images of the QSO central core; (3) accurate positions and apparent brightnesses for all 4 known images of the QSO central core and for the lens galaxy G; (4) a good representation of the brightness distribution of G by elliptical isophotes with a De Vaucouleurs profile, characteristic of an elliptical galaxy; (5) models that consist of simple elliptical potentials and account qualitatively, but not quantitatively, for the HST image positions, arc morphology and radio flux ratios for the images of the QSO central 