I have very fond memories of Harlyn Junction. It was a true exercise in nostalgia. The name 'Harlyn' comes from the bay we used to stay on in North Cornwall during summer holidays. The track plan was a modification of that for Coaley Junction. Coaley was where the branchline for Dursley, my birth town, left the Bristol-Gloucester main line of the LMS. Despite this lineage, Harlyn Junction was very much a Great Western Railway station. Apart from the cover article for the Railway Modeller, and a Japanese magazine, another 3 articles were also published detailing various aspects of its development.
I recently found these 5, previously unpublished views of Harlyn, dating back to the late 60s, when sorting through some boxes of slides!