I think that the last time that I saw those used was late 50`s or early 60`s.I was given 6 of them when the local road depts quit using them. Good luck.Have fun.Be safe. Leo
They were still using those smudge pots in the late 70s around my area,I grabbed one thinking I could do something with it but I took it back a couple days later to where I found it.
How's the view from down there? Safety glasses required. Good ol' Jax, my home town! Unfortunately, I can't remember her.