Greatest Costa Rica stamps ever auctioned from the Frederick R. Mayer Collection

Guanacaste overprint: 1888 5c Blue violet on cover

Greatest Costa Rica stamps ever auctioned

With type 9 overprint, tied by “Liberia” in violet oval pmk. on bright yellow cover to San Jose. Matching “Liberia/Spt 2/Costa Rica” c.d.s., San Jose receiver. A couple trivial cover adherences at bottom left, very fine.

Selling price: $15,000

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Make sure sure to visit the ultimate stamp collecting supplies list.

Make sure to review our tips for stamp collecting in the XXI century.

To keep your stamps and postcards safe from stains and getting damaged we recommend Lighthouse stock books.

Stamp Magnifying Microscope: Celestron 5 MP Handheld Digital Microscope 

Stamp Magnifying Lamp Desk Clamp-Mount 90 SMD LED Adjustable Spring-Arm

Make sure to view these amazing full stamp pane protective storage bags.

Manual perforation measurement gauge which has a really low price.

Electronic perforation measurement gauge, that has a higher price, but is easier measure perforations.