The coastal arty battery (3 guns, 4,7 or 5,5 inch)
The 3,7 inch AA battery at Alto de Sao Joao
Town of Mindelo with the coastal batt top and the AA bottom:
There may have been a third battery on the other side of the Porto Grande bay, where the barracks of the CV Army are located (undoubtedly former Portuguese barracks)... Check it out yourself on Google Eart (I dont publish that picture), as there are still signs of gun emplacements...