The content suggests that this was an Edinburgh-based law practice, with the majority of entries noting city addresses. The unknown law firm sets out details of titles properties, 1920s, 1930s.
The volume has this information on the spine:
Notes on Titles No.6 The volume comes from John Reid, Law & Mercantile Stationer, 78 Queen Street, Edinburgh. It holds reference numbers: 885 - for re-ordering.