As we often do, we searched online to see if the restaurant was still there.  This led us to a photo with a big “Last Days” banner hanging in front, and the caption “Henrici’s Restaurant, immediately before it closed forever on 15 August 1962 and it — along with the entire block — was demolished to make room for the Civic (Daley) Center”.  Well, that answers that.  The card billed it as “Chicago’s Premier Restaurant.”  Unused Curteichcolor card 4C-K346.  Grade: 1