
This postcard has been sold
Interior view of the National Library of El Escorial, showing a vaulted gallery decorated with frescoes and wall paintings, with an armillary sphere in metal in the foreground. The reverse indicates the publisher 'Patrimonio Nacional', the serial number 21, and a handwritten date: 28.7.63. A postage stamp is affixed in the upper right corner, with a partially visible cancellation.