Other than 718/720 did Diamond (Hammell) operate anything else?
Is the GNE Durham Diamond Reflecting this in any way?

(31 Oct 2021, 11:37 am)ASX_Terranova wrote Other than 718/720 did Diamond (Hammell) operate anything else?
Is the GNE Durham Diamond Reflecting this in any way?

Diamond was originally a co-operative between a number of independents. JH Hamell were part of it. 
http://www.sct61.org.uk/zzupt329k