Looks like clear tape that degraded over time. Good for those who never discarded the shrink wrap and used some sharp object to open it at the disc side instead.
Source: BBC broadcast recorded live at Oxford Polytechnic on 25 January, 1977
communion with the sun-6.55
love of the common man-3.30
the verb to love-7.30
The July 1978 issue of Trouser Press magazine featured an article called “From Here to Utopia”; mere coincidence or inspiration pinpointing the release date of this bootleg?