NMLP P-044349 · Point of issue · minted 2026-07-19

The Tower Treasure (Hardy Boys #1)

Franklin W. Dixon (Leslie McFarlane) · Grosset & Dunlap (New York) · 1927

The pre-text series list must run only through "The Secret of the Old Mill" — any listing of a later Hardy Boys title rules out the first printing — and the rear ads should run: Tom Swift (29 titles, ending "Airline Express"), Don Sturdy (7 titles, ending "Among Gorillas"), Radio Boys (10 titles), Garry Grayson Football (5 titles), and Western Stories for Boys (5 titles, ending with the X Bar X Boys' Round-Up as the last title listed)

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New Mexico Literacy Project — Point of issue NMLP P-044349 for "The Tower Treasure (Hardy Boys #1)" by Franklin W. Dixon (Leslie McFarlane) (https://newmexicoliteracyproject.org/id/point/p-044349, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).