The harbour of Silistra, Bulgaria according to a CIA report dated 16 December 1954

An item dealing with the harbours along the river Danube reported that the harbour of Silistra, Bulgaria was just small and used for shipping of food and word products to other destinations. There was a silo for the storage of food available.

Source
The report was published on www.archive.org, document number CIA-RDP80-00926A007500480005-4