Well, it looks JUST like this one except that the compressor housing on mine has been "show polished" (what a joke), so would explain the lack of the A/R rating cast on the housing.

http://cgi.ebay.com/ebaymotors/T3-T4-Turbo-50-A-R-500-whp-57T-Civic-Integra-GARRETT_W0QQcmdZViewItemQQcategoryZ33742QQitemZ8018029803