Propane tanks actually have a built in safety feature to mitigate the impact of accidentally dropping them. That's why the "handle" goes all the way around, you can't drop one and get a direct hit on the valve, assuming you drop on a flat surface. Welders and scientists know that bulk gas cylinders don't have this safety feature, instead if the cylinder is not secured it MUST be capped.
What d'ya'll make of this? Giving it away. Bottom shelf is completely rusted out. Grates appear to be stainless. Anything worth salvaging? Parts that could be used on project grills? Sure is a whole bunch of stainless. Looks like it's set up for natural gas.
First generation of the Genesis 300 series. It has the side burner controls. Some of us here call these "sidewinders" to contrast with the later 300 series grills where the controls were switched to the front.
I personally like these grills, since they kept the original Weber burner configuration. You could fab up a bottom for that and probably grill for years to come.