Final answer:
The minimal documents generally required to clear a shipment through customs are a packing list and a commercial invoice, which help customs authorities verify contents and assess duties.
Step-by-step explanation:
The set of documents that generally represents the minimum documentation required to clear a shipment through customs is a packing list and a commercial invoice. These documents are essential for the customs authorities to verify the contents of the shipment, assess the value for duty purposes, and ensure compliance with the importing country's regulations. While other documents such as a Certificate of Origin, Insurance Certificate, Bill of Exchange, and Letter of Credit can be important depending on the nature of the international transaction, they are not generally considered the minimal requirement for customs clearance.