Stamp VI from the book "Arab Antiquities of Spain. Part One", Printed in Madrid by the Royal Stamping House in 1787.
Bibliographic references:
BARRENA, Clemente; BLAS, Javier; CARRETE, Juan; MEDRANO, José M., "CALCOGRAFÍA NACIONAL, Catálogo general", Real Academia de Bellas Artes de San Fernando, Madrid, 2004, vol. I, 213, cat. 2240 - 2302.
Guarantee of origin:
Real Academia de Bellas Artes de San Fernando. Calcografía Nacional.