My '69 also has the lightbulb holder and clip on the top of the ashtray holder with a little hole in the bulb case and a little bigger hole in the ashtray holder. When you position the clip correctly the holes line-up and the light illuminates the ashtray. I suspect that they either discontinued the fibre optic in the late '69 production run or started it after a while in the early production run. Wonder if anybody knows?

According to the Classic and Year-one catalogs the light bulb holder on the cigarette lighter retaining sleeve did not appear until 1970....however as these things go they may have started putting them into some 1969 models. Mine does not have one.