(1) Where the contract contemplates overseas shipment and contains a term C. I. F. or C. & F. or F. O. B. vessel, the seller unless otherwise agreed must obtain a negotiable bill of lading stating that the goods have been loaded on board or, in the case of a term C. I. F. or C. & F., received for shipment.

(2) Where in a case within subsection (1) a tangible bill of lading has been issued in a set of parts, unless otherwise agreed if the documents are not to be sent from abroad the buyer may demand tender of the full set; otherwise only one part of the bill of lading need be tendered. Even if the agreement expressly requires a full set

(3) A shipment by water or by air or a contract contemplating such shipment is “overseas” insofar as by usage of trade or agreement it is subject to the commercial, financing or shipping practices characteristic of international deep water commerce.