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Forerunner of the First Regular Postal Card issue of 1882-1883. Prepared Following the Entry of El Salvador to the Universal Postal Union in April 1879 Locally Printed on White Paper
Card Stock
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Lilac Blue on white, issued without face value. UNLISTED ONLY KNOWN |
1879 JULY 15: SAN SALVADOR to SWITZERLAND Yellow Brown on white card with 1c and 2c Volcano issues for proper 3c Outbound Postal Card Rate. Via London, August 13. ONLY USED OF TWO KNOWN |
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