  We report the discovery of a new two-image gravitational lens candidate. The
system RX J0921+4529 contains two z_s=1.66 quasars separated by 6."93 with an H
band magnitude difference of $\Delta m=1.39$. The HST NIC2 H band images reveal
an H=18.2 spiral galaxy between the quasar images, which is probably a member
of a z_l=0.32 X-ray cluster centered on the field. We detect an extended source
near the fainter quasar image but not in the brighter image. If this extended
source is the host galaxy of the fainter quasar, then the system is a binary
quasar rather than a gravitational lens. VLA observations at 3.6 cm reveal
emission from the lens galaxy at the flux level of 1 mJy and a marginal
detection of the brighter quasar.
