Ultra Rare Orig 12 Unknown Reggae Dubplate Lp, Late 70s Listen

Here we have a ultra rare dubplate lp, unknown to me at least, all tracks play at 45rpm, 7 tracks in total , 4 one side, 3 the other, track one, vocal runs into a dj, , track 3 sticks at the start, so I ve added the clip just after the start, track 4, sticks in the middle, other side, track 2, small skip, probably just needs a good clean, I ve not cleaned it,, any info on this would be good,, really unusual roots culture music, must be from lat