This catalogue from HORNBY Railways is the 1825-1975 150 Stephenson Edition. The magazine is in A4 size and in very good condition. I have included a couple of photos on the internal pages to give you an idea on what's inside.

Brand: Hornby
Industry: Model Railroads & Trains
Publication Year: 1975
Type: Price Guide
Language: English
Features: Illustrated
Publisher: HORNBY Railways
Vintage: Yes