Freidrich Hetzelt, German architect and city planner, supplements opinion with gestures as he prepares for a tour of the city with German aluminum representative W.F. Widschotz, left, and Edgar Tritthart, architect and teacher. The three are in a party of 40 German architects studying the use of aluminum in New Orleans.

Photo is dated 1961.

Photo measures 10 x 8.25 inches.