ArtCard by Amma S ArtCard by Amma S, ZIP 90021, Downtown, Chinatown. Posted November 7, 2010. ArtistAmma S ZIP code90021 NeighborhoodDowntown, Chinatown PostedNovember 7, 2010 Share Copy link © Amma S, who retains copyright. Shared under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License. Terms ← Previous ZIP 90021 Next →