I have a 1971 142 E (what the GL was called in North America). I have the original Volvo accessories brochure from 1971 and that only shows an AM/FM radio with 5 preset tuning buttons.
I don't have any recollection of ever seeing one that was integrated with an AM/FM tuner for the early 140. There was not a lot of space in the dash of the up to 1972 models where the radio was mounted. There was this stereo accessory bulletin which came out in 1973 which shows a really ugly radio / 8 track player.
https://volvo1800pictures.com/docume...3_group_50.pdf
That 8 track / radio might have been for the 1973+ 140 which had the revised 240 like dash with the radio mounted in the center. There was a slightly less ugly 8 track / radio which came out for the 240 (attached).