| http://www.w3.org/ns/prov#value | - The postage-stamp cancelling device, cylinder, or tube C, containing a die or type, G, made of cork, wood, or other suitable material, or any equivalent for said cylinder or tube C, or for the said cancelling die or type G, whereby to efface, cancel, or destroy the postage-stamp with indelible or other ink, in the manner and for the purposes substantially as herein described and set forth.
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