A vintage view of the harbour beach in St Ives back in the days when fishing was the main industry, not pristine sandy beaches.
As you can see from this more recent photo (http://www.cornwalls.co.uk/photos/st-ives-harbour-beach-quayside-3187.htm) the biggest change is probably the addition of Wharf Road. Another noticeable difference is how much bare granite is on show - these days it is a fairly even mix of granite, whitewashed and rendered buildings.
There is still some fish landed at St Ives, but nothing like on the scale of this. Scenes like this died out not long after the turn of the century when the railways brought in a new source of money.