The Webley Mk3 is an early one with a fluted stock, rounded loading lever and no scope rail to get damaged.
Its .177 so slightly rarer than the .22 cal.
Screw heads appear excellent.
Rub some oil on the bluing and the barrel and cocking lever and they will probably look close to new again.
A beautiful rifle worth a minimum of £200 and maybe £250.

The BSA is not so nice but if it was .25 calibre would be worth between £1-2000.
My eyes are not good enough to see the calibre.
If its .177 or .22 I would say value is about £150.

I have bought from you before and have been delighted with my pistols.
Good luck with your sale once you decide how much to let them go for!