The factory flex discs (for a 126) have the following wording:
Diese Seite Zur Gelenkw (this side toward propeller shaft).

If you look at the manual photo of the propeller shaft side of the disc, the six metal sleeves appear to be positioned to the counterclockwise side of the rubber holes, so they can flex more to the clockwise side under load.
Or, to put it another way, according to the manual, the photo Gilley posted above is the tranny side of the flex plate.

This info from the 1986 126 factory manual.

DG