Not yet available on Youtube, but walk with me down memory lane: 
  
An alledged time traveller is arrested in Central Park and is in the cage. During the show he convinces Harris to dump his gold investments and move to zinc. (Harris quote: "Oh a couple of tons".) 
  
At the outro, the time traveller finally hears Dietrichs' full name. 
  
TT: "Dietrich? THE Arthur Dietrich?" 
  
AD: "Yes." 
  
TT: "My goodness, sir this is such an honor! I'd never thought that I'd meet someone as great as you!" 
  
Rest of the ol' 12th precinct stands around with gaping jaws. 
  
Dietrich: "Hey, I couldn't have done it without you guys." 
  
Cue exit music.