Blackwell's (Holborn)

Status: Still in existence (last checked in October 2018)
Address: 50 High Holborn, WC1V 6EP (osm) (gmap) (streetview)
Phone number: 020 7292 5100
Website: Website
Notes: Previously at 100 Charing Cross Road, but relocated to Holborn in 2014/2015.
Photo taken in October 2018