Michel notes after GN 1834 "Other values of a similar design were created without authorization from the post office and are not valid for postage.". This item is the one that is referenced. This item was massively and excessively produced as all the paintings series were. This item is related to the History of Spain from yesterday to today series of which the souvenir sheet is listed ONLY by Yvert et Tellier.
This item has been illegally produced without the authorization of the postal administration. Nincs postai érvényessége. They were produced by Mayfair International Security Printers located in France and distributed through the so-called philatelic agencies called "France Philatèlie" és "France Philatèlie 2000" owned and run by Mr. Juan Carlos Morino Montero. Known as the British counterfeit producer. BEWARE of fake First Day Covers, Color proofs and many other illegally produced products related to this series. Avoid sellers of this!
