I'm just a humble student of Rollei, I do not now about K1T8T24K etc.
viewtopic.php?f=40&t=1030 To me there are:
grey Rolleiflex T (MXV shutter)
black Rolleiflex T (MXV shutter)
black Rolleiflex T (XV shutter, "Rollei Werke" on front plate)
black Rolleiflex T (XV Shutter, "White Face")
All of these can be equipped with selenium meter (or not).
Most have a Tessar lens, some have an "Opton Te" labeled Tessar, some "White Face" have a Xenar lens.
So, your camera looks to me just like a grey Rolleiflex T without a meter, but if anyone could enlighten me about 8/24 etc., why not?