1979 Scensetters: Horse

I’m not entirely sure that this box (on the photo below) was used in 1979 or if it came out the year after.

The riding outfit, seen on the box was shown in the 1980 Sindy Brochure. But the one on the photo used on the box is most likely a prototype since the jumper is missing the white printed horse shoe so it could be they used this box already in 1979.