Secrets of NYC
✉️ The Lost Pneumatic Tube System at the NYSE
Long before fiber optics and wireless networks, bursts of compressed air kept Wall Street moving.
This week we learn that the woman calling on the Tulip family is none other than Velma Graydon and she’s very interested in a forgotten Tulip family heirloom.

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Need to get more context? Start at the beginning with the Cast of Characters.
Read last week’s installment to catch up.
Purchase the first two Wonder City books at the Untapped Cities Shop.
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