I am guessing that even with insurance, it is unlikely that you would ever actually see a settlement for this sort of shipment. You can optimistically hope that insurance does make the folks at the Post Office a little more careful.
Imagine your grave on a windy winter night. You've been dead for 70 years. It's been 50 since a visitor last paused at your tombstone..... Now explain why you're in a pissy mood today.