Image: John Herbert Hedley brochure

Description: Promotional materials for John Herbert Hedley's lecture "Rambling Through the Air."
Title: John Herbert Hedley brochure
Credit: University of Iowa Libraries.
Author: Not known
Permission: .mw-parser-output .imbox{margin:4px 0;border-collapse:collapse;border:3px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .imbox .mbox-text .imbox{margin:0 -0.5em;display:block}.mw-parser-output .imbox-speedy{border:3px solid #b32424;background-color:#fee7e6}.mw-parser-output .imbox-delete{border:3px solid #b32424}.mw-parser-output .imbox-content{border:3px solid #f28500}.mw-parser-output .imbox-style{border:3px solid #fc3}.mw-parser-output .imbox-move{border:3px solid #9932cc}.mw-parser-output .imbox-protection{border:3px solid #a2a9b1}.mw-parser-output .imbox-license{border:3px solid #88a;background-color:#f7f8ff}.mw-parser-output .imbox-featured{border:3px solid #cba135}.mw-parser-output .imbox .mbox-text{border:none;padding:0.25em 0.9em;width:100%}.mw-parser-output .imbox .mbox-image{border:none;padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .imbox .mbox-imageright{border:none;padding:2px 0.9em 2px 0;text-align:center}.mw-parser-output .imbox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .imbox .mbox-invalid-type{text-align:center}@media(min-width:720px){.mw-parser-output .imbox{margin:4px 10%}}This work is in the public domain because it was published in the United States between 1928 and 1977 inclusive, without a copyright notice. Unless the author has been dead for several years, it is not in the public domain in countries that do not apply the rule of the shorter term for US works. This includes Canada, China (not Hong Kong, Macao, or Taiwan Area), Germany, Mexico, Switzerland, and other countries with individual treaties. See also further explanation. PD-US Public domain in the United States //en.wikipedia.org/wiki/File:John_Herbert_Hedley_brochure.png
Usage Terms: Public domain in the United States
License: PD-US
License Link: //en.wikipedia.org/wiki/File:John_Herbert_Hedley_brochure.png