1853 - II issue c. 20 light blue on new thick paper with original gum.
Sassone n. 5, Test, Cardillo Cataloging n. P17
These are relief printing tests, in sheets of 50 specimens, aimed at regulating the pressure of the punches and balancing it so that all the punches have the same incisiveness on the surface of the stamp.
Cardillo certificate.
Margins/Perforation as per scan
The images are an integral part of the description.
