Well---times being tight and all that---I will have a go at 3 of them. No idea with the acvoke or ags.
Webley mk one is missing linkage and grip looks cracked. It looks like there is another hole at the front of the cylinder? £25- £30 for spares?
Relum-----about £45 as it is, maybe more splitting gun and scope?
Mercury looks like an early one-----missing rearsight but it is a .177 so £65- £75?
Anyone else have views or help with the others?