Some links if you want to explore the allegory:
https://cactus.utahtech.edu/green/B_Readings/Hugh%20Rockoff%20%20Wizard%20of%20Oz.pdf
https://en.wikipedia.org/wiki/Cross_of_Gold_speech
https://www.andrew.cmu.edu/course/88-301/data_of_macro/cross_of_gold.pdf
And some discussion of the greenback for some more context.
Thanks for sharing this
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