Up 'til about 15? 20yrs? back?
Zippo would send that down to the TRADER HORN store in Indiana, Pa.
On "Zippo Day"...bring yer busted Zippo. Put it in a bag with your name/address on it.
They would fix it & send it back (of course, if they could fix it on the spot, they did)
That was quite a Kool Kar!