On my recent wanderings I came across a BSA Mercury 'S' (Mk 2) in Pickering Airguns. £125 with a cheap scope and no open sights. No I didn't buy it because it had been refinished (painted not blued) but it would possibly make a nice rifle if someone wanted to re-blue it to original or just use it.
Hope that helps a fellow collector.
ATB
Ian
Founder & ex secretary of Rivington Riflemen.
www.rivington-riflemen.uk
Noticed today that Manchester Airguns have an "as new" Anschutz 335S in .177, for sale. No open sights, (or I would have bought it), but a scope's fitted instead.