is a National Reconnaissance Office Challenge Coin. Size is 1 1/2 inches. Coin is in excellent condition. Please read my shipping instructions. If you have any questions please email. US Shipping and Handling is $1.50 and .50 cents for each additional coin. International Shipping and Handling is $3.50 and $1.50 for each additional coin. Coin(s) is mailed within 3 business days. Seller is NOT responsible for items damaged or undelivered by the postal service.