This is a house ad for M.A.N.T.A FORCE WINTER SPECIAL 1989 which I recently stumbled across. I knew that IPC had run a MF strip in the pages of the EAGLE but I had no idea that M-UK had subsequently picked-up the license, from Bluebird Toys, for this one-shot. I've certainly never seen a copy.
The toy line itself (which I never owned although I have a vague memory of seeing adverts on TV-am) was a series of multi-function space vessels with mini-figure crew. One of which, a "Manta Man", was presumably given away with this one-shot.