Nigeria 10k Air Letters (3) to US, 1975 to same person from 3 different people

Multiple item purchases are highly encouraged, a discounted shipping rate will be determined at the end of auctions. This rate will be depending on the number of items, total weight, and size. Buyer must add $17 for USPS Registered International Mail service, it will be used for any oversea purchase over $100. USPS Priority Mail Express International service will be used for any purchase over $400, buyer pays half of the cost at $32.