These maps are available free to libraries until October 28.  US postage will be paid, but not to requests sent outside of the United States.  

https://psu.box.com/s/ldb2lmicm8cwzg17ad9pr0e8m32967ia

Send requests to:

Jenny Litz
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Jenny Litz
Maps Library Assistant, Donald W. Hamer Maps Library
Penn State University Libraries
1 Pattee Library
University Park, PA  16802