Antique Loveseat and Chairs from Wales with carpenter marks

I have inherited these two chairs and loveseat from a great uncle from my family in Wales. I don't know much about them pieces except that the love seat has carpenter marks which I believe read "E 5 5". I believe they were made in the early part of the 20th century, perhaps 1920s based on timelines of when my family was living in Wales, but it is just a guess. I thought they had a Morris chair look to them from the Arts and Crafts period.

Any help identifying when they could have been made, what style, and if they have any value would be really helpful. 

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