Coldstone Pottery, slipware dish by chris harries?

I think this must be chris harries but the coldstone imprint is different from the typewriter style that I can find pictures of. Any idea if this is older or newer or something else entirely?

It might be worth you looking at our Coldstone thread.
https://www.20thcenturyforum.com/t11749-dieter-kunzemann-chris-harries-evenlode-and-coldstone-potteries?highlight=coldstone

As a vague rule though Studio potters were often never very consistent in their marks!

It's unknown if this particular Coldstone stamp is Dieter Kunzemann's or Chris Harries', but since Harries preferred the wheatear and matchstick decoration, I'd say it's from Kunzemann's time - although they trained a number of potters and it may be a personal stamp made by one of them