Just an observation on this type stuff.............
In a manufacturing warehouse, a place like Weber, there's most likely a huge abundance of "spare parts"...........makes sense to me that for a 'special run' of something like the Orig post & the others mentioned, that they may end up "making up kettles"............in other words, WSM replacement vents, oddly coated triangles (was this a request by Schmidt Brewery, or something Weber thought might look nice at the time, or something left over from another 'special project' ?)
It's Red, fairly common for awhile ago, BUT daisy wheel, perhaps at that point beginning to take a back seat to the new & improved One Touch...............
Were the black triangles something they were testing out, a coating to prevent what's one of the problematic things about kettles: the regular ones ALWAYS rust at some point.......and maybe they had a bunch of 'testers' hangin' around, needing to be used for something?
The older Bar-B-Kettles didn't come w/ coated triangles, just after the OT system was brought forth, correct?
Kettle itself could maybe qualify as "spare parts" in the case of making stuff up for specific promotions?
Or, maybe I'm just makin' shit up.........