I do this song...never found the actual chords, but this works:
   Am
I heard an old ragman out making his rounds
       Dm            Am         Dm       E                  
Coming right down my alley with sorrowful sounds
       Am
Crying Rags..Old Iron and pulling his cart
         E
I asked how much he'd give me for my broken heart

Refrain:
Am
Rags..Old Iron, Rags..Old Iron
                      E       Dm Am
All he was buying was rags and old iron