@Manfred, thank you!

@Axel Huettemann:
The 3 forward cargotanks below Hold 1&2 were used for Latex, the cargotanks 4 to 11 were on the aft deck behind the 2 reefer holds and were used for oils, all discharged by portable pumps. As far as I remember all tanks were heated but cooling the oil down in the aft tanks was always a problem in the tropics.
Rgds, Manfred

It looks this class had at least three cargo tanks in the fore ship. Interesting. They used portable pumps for the unloading? I bet some heating coils were attached.

Many general cargo ships of this era, particularly those that were trading to the Far-East, were fitted with deep tanks for the carriage of liquid cargoes like palm oil and liquid latex.

Yes in so called deeptanks

So that was how they shipped Palmoil at those times.

Nice shot at Vulkanhafen, discharging Palm Oil.
Rgds, Manfred