I came across this image of Custom House Quay in Weymouth in RAIL magazine. On the left are what looks like 2 Alpha 5 lanterns (arrowed) on 10m concrete columns, all looking very new. The image is dated 1979. Back then, trains ran along the quay to meet the ferries. The ferries have long gone and the last train was decades ago, many of the railway lines have been lifted. Note the beam on the side of the building between the lanterns for a pulley block.
This is what it looks like in 2019, courtesy of Google.
Note the beam as the reference point - black arrow. Dorset PFI Iridium now in place (red arrow), ferries long gone, replaced by fishing and pleasure boats.
Whilst searching online, I found
this website which has some more old pictures. Note the GEC angled bracket concrete columns with early GEC8420 turtles.
This image on the website and copyright Clive Smith, shows the Concrete Utilities columns and Alpha 5s more clearly.
And the Google view of 2019.
The cafe has had a make over. The plain concrete houses with the arched fronts are now painted blue and yellow, the bay windowed house with the pink frontage by the nearest column is now painted cream. In the distance the road sign can be seen on the brick wall - as in the earlier image. Again a PFI Iridium installation has replaced the concretes.