Again: proof beyond doubt, would be a photo of an original switch, in place, on an original front panel. Such a photo seems to be surprisingly hard to produce, hard to find. I certainly don't want to disassemble my MITS Altair just to take an internal photo.
And my apologies, this is not a "personal trust" issue. I appreciate the identifications given, it's a "lead". My request for evidence is not unreasonable. I'm surprised it's so obscure! At least in year 2020. I've seen BUNCHES of photos of lots of MITS boards. But not of the original front panel, in profile. I'll be sure to provide those, should I tear my Altair apart. (No it's not for sale).
Regards, Herb
Herb, I don't really feel like taking apart the front panel, but here is the switch from the back of the 680, which I presume is the same as the front panel switches of the same system, and likely the same as the 8800 model: http://vintagecomputer.net/MITS/680/index.cfm?sort=datelastmodified&order=DE... (first three pics if you sort by date descending) Bill