These don’t appear to ever have been used. The flags are still folded up as they were. The one might be witnessing a spring. You can see it on the center being sold as is either for a collector or for roadside use.
Rotunda Reflector-Flare Windproof Tripod set in gold box (heavy) Emergency Road
$50.0
Year
1970
Country/Region of Manufacture
United States
Modified Item
No
condition
Used