Related Images
Download:
| Tiny | 101x128 | View | Download |
| Small | 203x256 | View | Download |
| Medium | 406x512 | View | Download |
| Original | 528x665 | View | Download |
This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Looking for more info about this image?
Try a Google Reverse Image Search for it.
Try a Google Reverse Image Search for it.
Keywords from Image Description:
Heliograph. heliograph Signaling with heliograph near Monument Alaska Canada border International Boundary Commission Heliograph UTC derivative work Macchess talk Heliograph noaa gov US National Oceanic and Atmospheric Administration Cropped Macchess Heliograph PDUSGov original upload log This image is derivative work