Mike,
Just checked the 1969 Fisher Body Manual, and like the extract Jim posted above, it states F-bodies (except '46' styles, which makes sense since 'verts had no steel window channel) had 4 anode clips in the back window, 2 per side. There is also a picture of a clip which looks like the last picture Jim added...... The GM part number is the same as for yours, but they appear quite different. The oldsobsolete site states usage includes 1967 and 1968 Camaro, maybe it changed for 1969 but kept the same part number?