"Porto Santo. Campo De Baixo. Towermill. Stones, Hopper And Shoe. 4 Jun 1976. Map Ref. 10" Colour transparency of the wallower, upright shaft, hopper shoe and stone vat of the more northerly (i.e. inland) of the two tower mills of windmill group no. 10 at Campo de Baixo, taken on 4th June 1976. 4.6.1976