Really doesn't have the appearance of oak. Now my 2 cents on restoration: unless you are really worried about the underside that appears to have some water marks, I'd go with a light professional planing--especially if it's redwood which is more of a soft wood--stripper might soak in and affect the coloration when finished.
The bed wood on my own truck was used oak bed wood--finish was stained, chipped, bubbling, etc. It came from a '55 that a guy was pro-streeting so was tubbing the bed. I stripped it with paint/varnish stripper, cleaned it up with painter's alcohol, sanded it, spar varnished (3 coats) the top, sides, and bottom, then used ultrafine steel wool and wax to dull down the gloss (it is so smooth it almost looks fake). That was 7+ years ago and it still looks great--and I drive my truck.
