NETHERLANDS 1930 MARITIME SHIP COLOMBIA 2 DIFF HANDSTAMPS KNSM DUTCH SCHEEPSPOST Netherlands 1c + 1 1/2c used on envelope; 2 different types of M.S Colombia ship cancels; boxed K.N.S.M dated 27 Nov 1930 + straight line handstamp. E.J Lunenburg Zierikzee oval cachet. Signed. Dutch sea post. (Green line on scan not on item).