first, it will say "made in the UK" on the outter rim of the top tin label - if it says EU, then it's made by Orlik.
flip the tin over, if it has a small rectangular distribution stamp from Lane, about 3/4" high x 1 1/4" wide, it's a good chance that it's made by Murrays (if it's a large round sticker, then it's Orlik).
i can't see your photo very well, but i don't see any "royal warrant" or funky "tails" type font on the word dunhill, which would probably make them from the 70s-late 80s and command a ton of money... but they aren't those.
a lot of dunhill tobacco fans prefer the Murrays era tins flavors over Orlik, and they command more money - sometimes, shockingly more.
we had a big discussion on this over on CS, i'll see if i can find it.
here's 1 topic, with photos linked in it.
another with some photos attached of the sticker i spoke about.
here's an interesting article about Dunhill tobaccos and who makes them.
sorry, i'm a dumbass. i have some
photos of Murrays era stuff i sold a while back on IPC.