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Page from Hassler's Notes

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See Detail View 		 Loaned by Ferdinand R. Hassler, V, Ardoth A. Hassler, and Linda Hassler Reynolds
Hassler kept this small notepad in a leather wallet. It is now kept in the NIST Research Library's Historical Collection.

 Loaned by Ferdinand R. Hassler, V, Ardoth A. Hassler, and Linda Hassler Reynolds

Hassler's Wallet