Only few are known at the moment. All came from Argentina but were not tie to letter/document. All were found inserted
in a KKL JNF Seminar brochure from the 1940'. Probably KKL or WWII/Alliyah related.
Unperforated. Showing map of Israel, Guarding tower (חומה ומגדל) and a ship breaking iron chains coming to the land. No text.
Very interesting and unique. Came to light recently with only a few specimens.