defaced stamp definition

defaced stamp means a postage stamp issued by a public postal operator (for use in a postal service provided by the operator) or by the Committee for Postal Administration and altered in a way that has not been authorized by the issuer (or, in the case of a stamp issued by the Committee for Postal Administration, by that Committee or the company);
defaced stamp means a postage stamp issued by a public postal operator (for use in a postal service provided by the operator) or by the Committee for Postal Administration and altered in a way that has not been authorized