I found this image on a northumberland.gov website archive (Ref NRO 01215/14) - it's labelled there as being c.1920 and appears to be the Star & Garter Hotel. Unless I'm mistaken, this building is now The Quay pub on Bridge Street (Blyth's No.1 Weekend Party Venue, apparently, according to its own website).
Now I thought (and there are plenty of pictures out there of old Blyth to back this up) that the Star & Garter Hotel was in Nortumberland Street, before it was renamed the Steamboat.
Anyone knaa what was renamed what, when?
Duncan.