Subject stem. Normally, the "stem" of a vessel is the forward end of the hull.
Said to weigh. Under the Hague Rules or Hague-Visby Rules, the carriers issue bills of lading showing either the quantity or weight, as the case may be, as furnished in writing by the shipper on the understanding that the carrier is not bound to state or show in the bills of lading arty quantity or weight which he has reasonable ground to suspect is not accurate or which he cannot reasonably check.
SSW. This is an abbreviation for "Summer Salt Water" and refers to the draught of the ship when it is loaded to its summer load line in salt water, that is, in the open sea. The summer draught is the maximum draught to which the ship can be loaded depending on the "freeboards" and "loadlines" assigned to it by the assigning authorities.