Shelbyville, Indiana, United States
by

Airmail arrow #4

"In the 1920s, America began coast-to-coast Airmail service, but the pioneer pilots had trouble navigating the route, since navigation charts of the day were fugazi and you couldn't exactly pull over to ask a farmer for directions. And traveling at night, when it would have been most efficient, or in bad weather was impossible. To solve this Congress then funded these gi-normous arrow-shaped Airmail Beacons, some up to 70 feet long, to trace a route across the country."

This one looks to be pointed back to Shelbyville Municipal Airport.

http://www.dreamsmithphotos.com/arrow/States/in/indiana.html

https://findery.com/tjh/notes/airmail-arrows

Airmail arrow #4