75010 1960s Is it Kinnerton Bank near Mold?
It has just come down a 1 in 75 easing to 1 in 170 bank (it could just be 1 in 270- the first number is not clear) when allocated to Wrexham or Chester.
Peter Rigby asks "Is it on the lower reaches of Kinnerton bank on the Mold branch. Train would be working from Mold to Chester."