Currently re-doing the front seats, and I was wondering if the seat covers are factory?

The Mini is a 69 Mini K

I doubt BMC would have used such a colourful pattern where it wouldn't be seen.
My mini K seats used an unbleached calico type of material, like the material backing along the sides of the seats in your photo.

That just looks like some scrap someone has used for a repair.

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Too many minis

Thanks. It appeared to be reasonably well done. There's foam sewn in various sections.