Sketches done on site are often hard to follow. Normally, I'd make a fair copy when I returned home but, in this case, I haven't found a later copy, so here is the original version from 1955.
F - Fixed (distant)
W - Wooden post
D - Doll (Goods arm)
S - Subsidiary arm
CO - Calling-on arm
The diverging track top left is the short branch to Stourbridge Town Station, at the time served by a '1400' with a single 'auto' coach, as shown in the heading photograph.
For details of what remained in 2005, refer to 'Railway Track Diagrams' Book 3: Western', Fourth Edition, published by Trackmaps (ISBN: 0-9549866-1-X). The First Edition of this book was published by Quail in 1989.