Eisteddfod Chairs

[Hippety]

I am currently assessing insurance cover for a church. The church has two oak Eisteddfod chairs from the early 20th century (both pre-1930) and I am trying to identify a realistic value for them but am struggling to find much information.

Would anybody have any idea who I could approach to assess the chairs for me. The church is in Cheshire.

Thanks,

Hippety