I spent the morning watching over an exibition of old postcards of Positano, down near the beach by the tourist office. Here are a few of my favourite postcards, showing how the town was over 100 years ago.
Here's a view from the beach towards the 'lion steps', before the Tre Sorelle and Buca di Bacco restaurants were opened:
Looking down towards where the Caporale restaurant is today, at the top end of the pier. The next village along the coast isn't even there!
A view of the oldest part of the town and the original road before it was widened: