Corfu Town in the late 1970s: How different it was back then?

It may not look that different at first glimpse but having a more careful look on the images below,   somebody notices that fewer cars existed and the roads were in a better condition. Though more than 30 years had passed since the guidebook that I've scanned these images was published, it seems that Corfu hasn't really changed a lot. In fact, the old venetian town is still attractive and charming as it was in the good old days of tourism (1950-1990).