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                Well... There was definitely a direction of change that happened
 
            
            (sh.itjust.works)
          
          
          
          
          
        COMM MOVED TO !historyphotos@piefed.social
In addition to the WWII rations and OPA stuff that others have mentioned, there was a fair amount of general deflationary pressure during the Great Depression in the 1930s.
I haven't looked at what happened to sugar specifically.
Later on, after the Cuban Revolution I know we subsidized sugar partly out of spite for Cuba. That would not be at play here though.