BARBARIAN AIRSHIPS?

BARBARIAN AIRSHIPS?
My Lunch Break channel
I did some binge watching of his videos yesterday... this video was fascinating.
Note: I edited out the part where he thanks his patrion members and named them all. It distracted from the video so that's why I removed it.
I had a friend way back when I was a teen (he was in his 40's) that I worked with in a bike shop who collected mail that was delivered on airships. He showed me the stamps that had info on them indicating they traveled via airship.