Spain

Seville: The most important Spanish cancels used on this flight are those of Seville as the arrival cancellations for covers coming from Brazil (our case) and elsewhere. Two basic types of cancellations were used, a machine cancel with motto concerning Olive Oil, and the hexagonal hand stamp device. Below are examples with all those dates that are known to me on covers of this flight.

Machine

Hand

Check the USA part to see how these different types and dates of the Seville devices correlates with the NY13 green Zeppelin cancellation dates when this covers were returned to the US.

Cities in General: Besides the Seville versions, often additional routing postmarks appear. Some of the cities seen so far:

Barcelona

Cartagena

Madrid