For any stamp collector looking for a unique addition to their collection, these Costa Rica stamps from the 1930s are a must-have. Featuring the Airmail designations #C28 and #C35, as well as #179-#184-#186, these stamps are a rare find. The mint quality of these stamps, combined with their ungraded grade and uncertified certification, make them a true gem for any collector. The stamps originated from Costa Rica, adding to their historical and cultural significance. Don't miss out on the opportunity to add these stamps to your collection today.