  Recently, a distinct shadow mechanism was proposed by Wang et al. from the
asymmetric thin-shell wormhole (ATW) in [Phys. Lett. B 811 (2020) 135930]. On
the other hand, Gralla et al's work [Phys. Rev. D 100 (2019) 2, 024018]
represented a nice description of photon rings in the presence of an accretion
disk around a black hole. In this paper, we are inspired to thoroughly
investigate the observational appearance of an accretion disk around the ATW.
Although the spacetime outside an ATW with a throat could be identical to that
containing a black hole with its event horizon, we show evident additional
photon rings from the ATW spacetime. Moreover, a potential lensing band between
two highly demagnified photon rings is found. Our analysis provides an
optically observational signature to distinguish ATWs from black holes.
