#2623a Italy #1880a Joint Issue, Columbus Voyages, Block of Four
Bonus point credit for purchase: 9 points currently valued at $0.18
'Joint stamp issues
are stamps released by two or more postal administrations at the occasion of a common ... characterized either by a common design or the same date of issue
or both. '
I have many of the joint issues
for sale. To view all of them available click here.