This was in the MX5 when I got it and it doesn’t fit me or the way I want the car to look.
The seat frame is in excellent condition with some wear on the seat fabric.
One of the cushions is missing.
It comes on a Bride factory seat base. It side mounts onto the seat and could maybe be used for other side mount bucket seats. It retains full movement of the seat forward and backward and there is height adjustment through the slotted holes in the seat frame.
I will upload some actual pics tomorrow, but in the meantime here are some I "borrowed" from the web of the same type of seat

And the seat base/frame for the MX5


May split seat and base
€160 ono located in Dublin