The Rover-Landers of BC

Are these land rover parts?

http://i1186.photobucket.com/albums/z363/davran714/Parts%20For%20Sale/20150419_172321.jpg

Thanks,

Those go under the bottoms of the seats on series tricks and AFIRK early defenders as well.

I thought they might do that, but I couldn't see a way for them to fit.